Pre-Order Available Now
Founding 30 Gift Box
The first 30 customers to place a pre-order from our Launch Collection will receive an exclusive hy. Founding 30 Gift Box completely free of charge.
Pre-orders are scheduled to ship in Autumn 2026.
The Launch Collection
More than activewear.
hy. was created to give girls aged 8–14 something that didn't exist: a brand designed entirely with them in mind.
For the girls discovering what they're capable of.
For the girls navigating changing bodies.
For the girls who want to feel comfortable, confident and strong.
Thank you for being here at the beginning of our story.
Oh hy! We can't wait to grow with you.
♡
hy. Size Guide
Need help finding the perfect hy. fit?
Our Size Guide is here to make choosing easy. Designed specifically for girls aged 8–14, our measurements are based on real bodies to ensure comfort, confidence, and freedom to move. If you're between sizes or need a little extra help, we're always happy to assist.