The pair they reach for every time.
We didn't shrink adult gear. We rebuilt it from the ground up for how kids actually move — designed alongside coaches, tested with real kids, refined with parent feedback. The result is simple: the pair they choose first, wear hard, and never think twice about.
Built for movement, comfort and the way kids actually play.
Premium fabric, real movement, and styles kids actually want to wear.
Mix and match any 2 or 4 styles at checkout.
Why they reach for them every time.
Most kids' gear is made to look the part. CoreFlex is built for how they actually move, play, and live in it — combining performance features you won't find in typical youth gear.
or basic
stretch
control
untested
adult fit
purchase
Choose your bundle.
CoreFlex Shorts are $58 per pair. Founding family pricing is our thank-you for getting here early — and the easiest way to stock up before the first drop sells through.
Most families end up buying 2–4 pairs anyway — this is the smartest way to buy before launch pricing begins.
How it works
- ✓1 CoreFlex Short
- ✓Shipping not included
- ✓No founding family bundle pricing
- ✓2 CoreFlex Shorts — mix ANY styles you want
- ✓Free shipping included
- ✓30-day satisfaction return
- ✓Free fit exchange
- ✓4 CoreFlex Shorts — mix ANY styles you want
- ✓Free shipping included
- ✓30-day satisfaction return
- ✓Free fit exchange
- ✓Size-Up Guarantee included
Three simple guarantees.
We built Eyrx to be premium, durable, and ready for real kid life. If something isn’t right, we make it right. That’s how we stand behind every order.
Return Guarantee
30 days from delivery
If they’re not right for your family, send them back within 30 days for a full refund to your original payment method.
- ✓Unworn, unwashed, tags attached
- ✓Full refund on qualifying returns
- ✓Simple email-based process
Exchange Guarantee
Wrong size? We make it right.
If the fit is off, exchange for the right size within 30 days. You send the original pair back, and we ship the replacement out to you at no cost.
- ✓Size exchanges within 30 days
- ✓Replacement outbound shipping on us
- ✓No restocking charges
Size-Up Guarantee
Because kids grow fast
Every 2-pack and 4-pack includes our Size-Up Guarantee. When your child outgrows their shorts, you get a $20 credit toward your next eligible order.
- ✓Included with bundle purchases
- ✓Claimable 3 months after purchase
- ✓$20 credit toward your next eligible bundle order