TL;DR:
- Compression shorts designed for combat sports and gym training focus on fit, fabric weight, and seam construction. Combatra’s flagship Blood Splash shorts use heavyweight fabric and flatlock seams to ensure durability, opacity, and comfort during high-volume sessions. Their range also includes customizable options, sun-protective rashguards, and complete Gi sets available in Australia.
The best compression shorts for BJJ, MMA and gym training behave like a second skin: they stay put through takedowns, resist mat abrasion, and keep you cool across a full session. Combatra’s Blood Splash Compression Shorts lead this list for daily grappling because they combine heavyweight fabric, flatlock seam construction, and a secure waistband built for high-volume training. For outdoor and summer sessions, Combatra also offers UPF 50+ rashguards tested to AS 4399:2020, which matters in Australia where UV levels are among the highest in the world. Compression shorts and rashguards work together in BJJ and MMA: the shorts provide lower-body muscle support, reduce mat burn and bacterial transfer, and manage sweat during contact drills, while a rashguard handles the upper body. The picks below cover every training type, budget, and fit preference, with Australian availability noted throughout.
Top 10 picks at a glance:
- Combatra Blood Splash Compression Shorts — best overall for BJJ and MMA; heavyweight fabric, flatlock build
- Combatra Red Handprint Compression Shorts — best for high-volume gym and HIIT; bold design, combat-grade construction
- Combatra Design Your Own Compression Shorts — best for teams and academies; fully customisable with logos and colours
- Combatra Custom White & Orange BJJ Rashguard UPF 50+ — best rashguard layer for outdoor training
- Combatra Custom Black & Purple BJJ Rashguard UPF 50+ — best for indoor competition and team kits
- Combatra Custom Black BJJ Rashguard UPF 50+ — best all-round rashguard for daily training
- Combatra Black BJJ Gi Jacket — best for practitioners building a full kit
- Combatra White Shirt with Black Pant BJJ Gi — best entry-level gi set for new grapplers
- Combatra Plain Black Personalised BJJ Gi & Custom Shirt Set — best for academy team orders
- Combatra Blue 14 oz Karate Uniform — best for cross-training in striking arts
All Combatra products ship to Australia. Visit the compression shorts range to order.
Table of Contents
- The best compression shorts for BJJ, MMA and gym training: full reviews
- How to choose the right compression shorts for BJJ, MMA or gym training
- What do fabric specs actually mean for your training?
- Gender-specific vs unisex compression shorts: what suits you?
- Key takeaways
- Combatra compression shorts: built for the mat, available in Australia
The best compression shorts for BJJ, MMA and gym training: full reviews
1. Combatra Blood Splash Compression Shorts
Best for: BJJ, MMA, daily grappling
The Blood Splash Compression Shorts are Combatra’s flagship combat liner. The fabric weight sits near the heavier end of the combat-grade range, which means opacity and shape retention hold up after repeated wash cycles. Flatlock seams run flat against the skin, eliminating the chafing that standard overlocked seams cause during guard work and takedowns.
Pros: Heavyweight fabric stays opaque under load; flatlock construction; secure waistband; AU stock available Cons: Heavier fabric runs warmer in summer — pair with a breathable outer short for hot-weather sessions
Who it suits: Grapplers training five or more sessions per week who need a liner that lasts.
2. Combatra Red Handprint Compression Shorts
Best for: Gym, HIIT, MMA striking sessions
The Red Handprint Compression Shorts carry the same combat-grade construction as the Blood Splash but with a bolder graphic. The 4-way stretch fabric recovers quickly between reps, making it a strong choice for circuit training and bag work where you need freedom of movement without ride-up.
Pros: 4-way stretch; eye-catching design; flatlock seams; versatile across training types Cons: Bold graphic may not suit practitioners who prefer a plain liner under gi shorts
Who it suits: Athletes who train across multiple disciplines and want one short that covers all of them.
3. Combatra Design Your Own Compression Shorts
Best for: Teams, academies, custom kit orders
The Design Your Own option lets athletes and academy owners specify colours, logos, and names on the same combat-grade base fabric. Custom compression wear also allows precise sizing across a squad, which reduces the fit issues that come with off-the-shelf sizing. Minimum order quantities apply — check the product page for current details.
Pros: Full customisation; team-consistent sizing; same durable build as standard range; ideal for academy branding Cons: Lead time longer than standard stock items; minimum order may not suit solo buyers
Who it suits: Academy owners, coaches, and teams ordering matching kit.
4. Combatra Custom White & Orange BJJ Rashguard UPF 50+
Best for: Outdoor training, summer sessions, sun-exposed environments
This rashguard is rated UPF 50+ and tested to AS 4399:2020, the Australian standard for sun protective clothing. A high UPF rating means the fabric blocks the vast majority of UV radiation reaching the covered skin, which is classified as “Excellent protection” by ARPANSA. For practitioners training outdoors during Australian summers, this is the most practical upper-body layer available.
Pros: UPF 50+ rated; AS 4399:2020 tested; moisture-wicking; customisable Cons: White base shows sweat staining faster than darker colourways
5. Combatra Custom Black & Purple BJJ Rashguard UPF 50+
Best for: Indoor competition, team kits, cooler training environments
The black and purple rashguard carries the same high UPF rating in a darker colourway that hides sweat and holds its appearance through heavy use. The compression fit supports muscle tissue during dynamic grappling movements, which helps reduce vibration and fatigue across long training sessions.
Pros: UPF 50+ rated; dark colourway hides wear; compression support; customisable for teams Cons: Black fabric absorbs more heat outdoors — less ideal for midsummer outdoor sessions
6. Combatra Custom Black BJJ Rashguard UPF 50+
Best for: All-round daily training, BJJ and MMA
The Custom Black Rashguard is the most versatile option in Combatra’s rashguard range. It pairs cleanly with any compression short or gi, and its high UPF rating means it doubles as sun protection for outdoor sessions. Polyester-spandex construction provides the 4-way stretch and quick-dry performance that grappling demands.
Pros: Versatile colourway; UPF 50+ rated; 4-way stretch; pairs with any lower-body layer Cons: No standout design feature for athletes who want a distinctive look
7. Combatra Black BJJ Gi Jacket
Best for: Practitioners building a complete BJJ kit
The Black BJJ Gi Jacket is a natural companion to any compression liner. Wearing a compression short under a gi jacket is standard practice in BJJ — the liner manages sweat and protects skin while the gi handles the outer layer. Combatra’s gi jacket is cut for grappling movement, not just aesthetics.
Pros: Grappling-specific cut; pairs with compression liners; AU stock available Cons: Jacket only — pants sold separately or as part of a set
8. Combatra White Shirt with Black Pant BJJ Gi
Best for: New grapplers, entry-level competition
The White Shirt with Black Pant BJJ Gi gives new practitioners a complete starting kit. Layering a compression short underneath is strongly recommended from day one: it reduces mat abrasion, manages moisture, and keeps training hygienic. This gi set is a practical entry point before investing in heavier competition-grade uniforms.
Pros: Complete gi set; accessible price point; good starting kit for new practitioners Cons: Entry-level weight may not suit high-frequency competition training
9. Combatra Plain Black Personalised BJJ Gi & Custom Shirt Set
Best for: Academy team orders, personalised kits
The Plain Black Personalised BJJ Gi & Custom Shirt Set allows academies to order matching uniforms with custom names or logos. Pairing this with the Design Your Own compression shorts creates a fully branded training kit from liner to outer uniform.
Pros: Personalisation available; clean black colourway; suits academy bulk orders Cons: Custom orders require lead time; not suitable for urgent single-item purchases
10. Combatra Blue 14 oz Karate Uniform
Best for: Cross-training in striking arts, karate practitioners
The Blue 14 oz Karate Uniform rounds out the kit for athletes who cross-train across striking and grappling disciplines. The 14 oz weight provides durability for regular training. Wearing a compression liner underneath is practical for hygiene and muscle support during long sessions.
Pros: Durable 14 oz weight; clean blue colourway; suits cross-training athletes Cons: Heavier weight runs warmer — less suited to summer outdoor sessions without ventilation
| Product | Best for | Compression | Seam type | Cup pocket | AU available |
|---|---|---|---|---|---|
| Blood Splash Compression Shorts | BJJ / MMA daily | High | Flatlock | Yes | Yes |
| Red Handprint Compression Shorts | Gym / HIIT / MMA | High | Flatlock | Yes | Yes |
| Design Your Own Compression Shorts | Teams / academies | High | Flatlock | Yes | Yes |
| Custom White & Orange Rashguard | Outdoor / summer | Medium | Flatlock | N/A | Yes |
| Custom Black & Purple Rashguard | Indoor / competition | Medium | Flatlock | N/A | Yes |
| Custom Black Rashguard | All-round daily | Medium | Flatlock | N/A | Yes |
How to choose the right compression shorts for BJJ, MMA or gym training
The single most important factor is fit combined with fabric density. A short that rides up during guard work or goes sheer when stretched is worse than no liner at all. Get those two things right and everything else is secondary.
Must-have checklist:
- Fabric weight: Combat-specific shorts perform better at heavier fabric weights near 300 GSM. Lighter gym-grade liners (180–220 GSM) lose opacity and shape faster under daily grappling.
- 4-way stretch: Non-negotiable for grappling. You need full hip extension for guard and takedown work.
- Flatlock seams: Flatlock stitching keeps seams flat against skin and prevents chafing at the inseam and waistband.
- Waistband: Wide, non-roll waistbands stay in place through scrambles. Narrow elastic waistbands roll and bunch.
- Inseam length: Mid-thigh length is the standard for Australian training environments — it stays invisible under outer shorts and provides enough coverage to protect against mat abrasion.
- Opacity: Stretch the fabric before you buy. If it goes sheer at full extension, it will embarrass you on the mat.
- Cup pocket: Useful for MMA sparring where groin protection is required. Not all shorts include one — check the product page.
Red flags to avoid:
- Zips, pockets, or metal hardware — these catch and abrade training partners and damage gear
- Velcro closures near the waistband
- Visible sheerness when the fabric is stretched flat
- No GSM listed on the product page — absence of GSM usually means a lighter gym liner, not a combat-grade short
Three-step decision flow:
- Define your primary use: Pure BJJ/MMA grappling needs heavyweight fabric and flatlock seams. Gym and HIIT training can work with a lighter build.
- Check inseam and waistband: Mid-thigh inseam for grappling; confirm the waistband is wide and non-roll.
- Confirm AU availability and sizing: Measure your waist and hip, then check the brand’s size guide. When between sizes, size up for grappling — you need room to move.
Sizing guidance: Measure your natural waist and the widest point of your hips. Most compression shorts size by waist, but hip measurement matters for fit through the seat during guard work. If a brand’s size guide shows your measurements split across two sizes, take the larger one for training.
What do fabric specs actually mean for your training?
Understanding a spec sheet takes about two minutes and saves you from buying the wrong short — especially if you compare fit and fabric details as explained in Joggers vs Sweatpants: Fit, Fabric, and When to Wear Each – Serpens.
GSM (grams per square metre) measures fabric density. Higher GSM means heavier, more durable, and more opaque fabric. Combat-specific gear typically sits near 300 GSM; standard gym liners run 180–220 GSM. The difference is noticeable after 50 wash cycles.
4-way stretch means the fabric stretches in all four directions — lengthwise, widthwise, and both diagonals. For grappling, this is the baseline requirement. 2-way stretch restricts hip movement during guard work.
Flatlock stitching creates a seam that lies flat rather than raised. Raised seams press into skin during extended ground work and cause friction burns at the inner thigh and waistband. Flatlock construction eliminates that.
Gusset refers to a diamond-shaped panel at the crotch that allows full hip extension without seam stress. Not all compression shorts include one — check the product description.
Fabric blends: Polyester-spandex and nylon-spandex blends both provide 4-way stretch and moisture-wicking. Nylon tends to be softer and slightly more abrasion-resistant; polyester dries faster and holds colour better through repeated washing. For daily grappling, either blend works well at sufficient fabric weight.
Compression levels: Graduated compression applies more pressure at the lower thigh and less toward the hip, which limits muscle oscillation and reduces fatigue during dynamic movements. Light compression suits gym and recovery use; medium to high compression suits grappling and sparring.
UPF ratings: For outdoor training in Australia, a high UPF rating is the standard to look for. The AS 4399:2020 standard governs how sun protective clothing is tested and labelled in Australia. Such a rating means the fabric has been tested and classified as providing excellent UV protection. Note that the UPF rating applies only to the area of skin the fabric covers, and protection can reduce if the fabric is stretched or wet.
Care tips:
- Wash in cold water on a gentle cycle
- Avoid tumble drying — heat degrades spandex fibres and reduces compression recovery
- Do not use chlorine bleach or hydrogen peroxide on coloured compression fabric
- Turn shorts inside out before washing to protect the outer graphic
Pro Tip: If you train outdoors during Australian summer, pair your compression shorts with a UPF 50+ rashguard. Compression shorts alone do not cover enough skin area to qualify for sun protection labelling under AS 4399:2020 — the rashguard handles the upper body UV load.
| Spec | What to look for | Why it matters |
|---|---|---|
| GSM | Near 300 for combat use | Opacity, shape retention, durability |
| Stretch | 4-way | Full hip extension for grappling |
| Seam type | Flatlock | No chafing at inseam or waistband |
| Fabric blend | Polyester-spandex or nylon-spandex | Moisture-wicking and abrasion resistance |
| Compression level | Medium to high for grappling | Muscle support and fatigue reduction |
| UPF rating | UPF 50+ for outdoor training | Excellent UV protection per AS 4399:2020 |
How the shortlist was chosen
The shortlist prioritises four criteria: fabric weight and durability, fit stability under load, seam construction, and Australian availability. Products were assessed through real-world wear testing across rolling sessions, takedown drilling, and repeated wash cycles, with lab specs checked where available (GSM, fabric blend, seam type). User-review synthesis was used to identify common failure points — ride-up, sheerness after washing, and waistband roll — and products with those issues were excluded.
McGinnis, Combatra’s lead reviewer, has a background in combat sports coaching and has assessed compression gear across BJJ, MMA, and high-volume gym training contexts. Testing involved BJJ athletes, MMA coaches, and high-frequency gym users across multiple sessions.
Transparency note: This article is published by Combatra. Combatra products are featured as recommended options consistent with the brand’s standing as a leading combat-sports apparel provider in Australia.
Gender-specific vs unisex compression shorts: what suits you?
Most combat-sports compression shorts are designed on a unisex or male-forward template, which creates fit issues for female and non-binary practitioners. The waistband sits differently, the seat is cut narrower, and the inseam length is calibrated for a male hip-to-thigh ratio. For many women training BJJ or MMA, this means constant adjustment during rolling.
Gender-specific cuts address the hip-to-waist ratio directly. A women’s-specific compression short typically has a higher rise, a wider seat, and a shorter inseam relative to the waistband. The result is a short that stays in place through guard work without requiring a larger waist size to accommodate hip width.
Unisex designs work well for athletes whose measurements fall close to the standard template. If your hip measurement is significantly larger than your waist measurement, a gender-specific cut will almost always fit better. Combatra’s Design Your Own option allows custom sizing that accounts for individual measurements, which sidesteps the unisex fit problem entirely for team orders.
For academy owners ordering team kits, offering both a standard and a women’s-specific sizing option reduces returns and improves training comfort across the squad. The why custom design in BJJ matters article covers this in more detail for coaches managing team orders.
Key takeaways
The most important factor when choosing compression shorts for BJJ, MMA or gym training is fabric weight combined with flatlock seam construction — everything else is secondary.
| Point | Details |
|---|---|
| Fabric weight matters most | Combat-grade shorts near 300 GSM stay opaque and hold shape far longer than lighter 180–220 GSM gym liners. |
| Flatlock seams prevent chafing | Flat seams at the inseam and waistband eliminate friction burns during extended ground work. |
| Mid-thigh inseam is the standard | Mid-thigh length stays invisible under outer shorts and provides adequate mat-abrasion protection in Australian conditions. |
| UPF 50+ for outdoor training | For summer or outdoor sessions, pair compression shorts with a rashguard tested to AS 4399:2020 for excellent UV protection. |
| Combatra recommended pick | Combatra’s Blood Splash Compression Shorts lead the list for daily grappling; the Design Your Own option suits academy team orders. |
Why the “second skin” standard is harder to meet than it looks
Most practitioners underestimate how much a poor-fitting compression short costs them across a training week. A short that rides up during guard work forces constant readjustment, breaks concentration, and creates friction points that accumulate into real skin damage over time. The “second skin” standard — a short that vanishes under your outer gear with no bunching, no ride-up, and no transparency under load — is not a marketing phrase. It is a functional requirement for anyone training at volume.
What practitioners often miss is that fabric weight is the primary driver of that standard, not brand name or price point. A heavier, denser fabric holds its position and opacity through a full session in a way that a lighter gym liner simply cannot replicate. The compression benefit follows from the same density: graduated pressure that limits muscle oscillation and reduces fatigue requires a fabric that maintains its structure under load, not one that stretches out by the second round.
The picks in this list were chosen because they meet that standard consistently, not because they look good in a product photo.
Combatra compression shorts: built for the mat, available in Australia
Combatra’s compression shorts range is designed specifically for combat sports training — not repurposed gym wear. The Blood Splash and Red Handprint shorts are in stock in Australia, with standard shipping and returns available through the Combatra website. For teams and academies, the Design Your Own Compression Shorts page lets you specify colours, logos, and sizing across a full squad order.
Combatra also offers a full training kit: UPF 50+ rashguards for outdoor and summer sessions, BJJ gis for competition and club training, and karate uniforms for cross-training athletes. Every product is built to the same standard: combat-tested durability, flatlock construction, and Australian availability. For a closer look at how compression shorts and compression pants compare for different training contexts, the compression shorts vs compression pants guide covers the trade-offs in detail.
Shop the full range and place your order at combatra.com.au.