Core Rashguard

Core Rashguard

Regular price $47.99 CAD
$47.99 CAD Regular price
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Core Rashguard
$47.99

Rashguards That Actually Last

Compression gear built for serious training. No gimmicks, just performance.

Ships in 24hrs
4-way stretch
30-day exchanges
Flatlock stitching

Why grapplers trust this rashguard:

  • Compression that lastsPremium 4-way stretch fabric that won't bag out after 100+ rolls. Maintains shape wash after wash.
  • Stays in placeFlatlock stitching and athletic cut keeps it tucked during the most intense scrambles.
  • 30-day size exchangesWrong size? We've got you. Easy exchanges on unworn items with tags attached.
Size Guide
Rashguards should fit snug but not restrictive. Between sizes? Size up for layering, down for competition.
Size Height Weight Chest Waist
S 5'4" - 5'7" 130-155 lbs 34-40" 28-32
M 5'7" - 5'10" 155-175 lbs 38-44" 30-34
L 5'10" - 6'1" 175-200 lbs 40-46" 32-36
XL 6'0" - 6'3" 200-230 lbs 42-48" 34-40

Product Details

Fabric: 80% Polyester, 20% Spandex - 4-way stretch compression

Features: Flatlock stitching, moisture-wicking, quick-dry technology

Fit: Athletic compression fit - moves with you, not against you

Print: Sublimation printed - won't crack, peel, or fade

Materials & Care

Composition: 80% Polyester / 20% Spandex blend

Weight: 220 GSM - substantial feel without bulk

Care: Machine wash cold, tumble dry low. No fabric softener. Will not shrink.

Shipping & Returns

Shipping: Orders ship within 1-2 business days. Free shipping on orders over CA$149.

Exchanges: 30-day exchanges on unworn items with tags attached. Worn items cannot be exchanged. We cover return shipping for size exchanges.

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How We Compare

Rashguards That Actually Last

See why grapplers are switching to no-nonsense compression gear.

Feature Basics for BJJ What You Don't Want
Compression Holds shape 100+ washes Loses form and shape
Fabric Feel Breathable side mesh Scratchy or thin
Print Quality Sublimated - won't crack Screen print peels
Design Clean + minimal Busy + dated
Common Questions

Rashguard FAQ

Everything you need to know before buying.

What's the fabric made of?

80% polyester, 20% spandex—220 GSM weight. Substantial enough to last without being heavy or hot. The 4-way stretch moves with you during hard training, and the moisture-wicking keeps you dry.

Will this ride up during rolls?

Nope. The athletic cut and quality elastic keeps it tucked and in place. The 4-way stretch moves with your body instead of bunching up. Flatlock seams mean zero chafing too.

Does it show sweat stains?

Our moisture-wicking fabric pulls sweat away from your body and dries quickly. Less visible sweat marks during training, and no lingering dampness after class.

Can I wear this under my gi?

Absolutely. Lots of grapplers wear compression tops under their gi to reduce mat burn and keep things hygienic. Great for both gi and no-gi training.

Long sleeve or short sleeve?

Long sleeve offers more mat burn protection and keeps your arms covered for hygiene. Short sleeve is cooler and some prefer the mobility. Both work great—personal preference.

Why no flashy designs?

Clean, minimal aesthetic on purpose. No skulls, dragons, or cringy quotes. Just solid colors that look professional at any gym. Your performance speaks louder than your gear.

What size rashguard should I get?

Check the size guide above for height and weight ranges. Rashguards should fit snug—that's the point. Most people wear their regular shirt size. Between sizes? Size down for competition-tight, up for layering or comfort.

Is the compression too tight?

It's athletic compression—snug but not restrictive. You want it fitted so opponents can't grab fabric, but you'll have full range of motion. If you prefer looser fit, size up.

Will it stretch out over time?

Quality compression fabric maintains its shape. Our rashguards won't bag out or lose compression after repeated washes. They're built to hold up session after session.

I'm muscular—should I size up?

The 4-way stretch accommodates different body types well. If you're very muscular through the chest and shoulders, sizing up might be more comfortable. Check your chest measurement against the size guide.

How long does shipping take?

We ship from Ontario, Canada. Orders typically ship within 1-2 business days. Most Canadian orders arrive in 3-7 business days depending on your location. Free shipping on orders over $149 CAD.

Do you ship internationally?

Currently we ship within Canada only. We're working on US and international shipping—sign up for our newsletter to know when we expand.

Can I track my order?

Yes. You'll get a tracking number via email once your order ships. You can track delivery status right from your email or our website.

What if I chose the wrong size?

No stress—we offer easy size exchanges within 30 days on unworn items with tags attached. Rashguards should fit snug but not restrictive. Check our size guide above, and reach out before ordering if unsure.

Can I return a worn rashguard?

No—for hygiene reasons, we can't accept worn items. Try it on at home to check the fit before training. Unworn items with tags attached can be exchanged within 30 days.

Who pays for return shipping?

For size exchanges within Canada, we cover return shipping. Just contact us and we'll send a prepaid label. For other returns, shipping is the customer's responsibility.

Will the print crack or peel?

Never. We use sublimation printing, which means the design is embedded into the fabric fibers—not printed on top. It won't crack, peel, or fade no matter how many times you wash it.

How do I wash my rashguard?

Machine wash cold, tumble dry low. Skip the fabric softener—it reduces moisture-wicking performance. These won't shrink or fade. Wash after every session to keep them fresh.

Will it shrink?

No. Unlike cotton, our polyester-spandex blend doesn't shrink. What you order is what you get, wash after wash. No special care needed.

How do I get rid of rashguard smell?

Wash after every session—don't let it sit in your gym bag. If odor builds up, soak in a mixture of cold water and white vinegar before washing. The synthetic fabric releases odor easier than cotton once treated.

Can I iron my rashguard?

Don't. The heat can damage the synthetic fabric and any printed designs. These don't really wrinkle anyway—just hang or lay flat to dry and they're good to go.