GritStreak Performance Tee

Challenge 01 — 21-Day Streak Drop

This product is part of GritStreak Challenge 01.

The rules (21 days):
✅ 10-minute walk
✅ 5-minute mobility
Miss up to 3 days and still finish.

Tracking: Stridekick (link on the Challenge page)

Shop the full Challenge 01 drop:
Challenge 01 Collection

*Not medical advice. Train within your limits.*

Soft, everyday training tee for runs, lifts, and everything in between. Made to survive sweat, laundry, and your next challenge.


Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, phthalates and formaldehyde level requirements.

In compliance with the General Product Safety Regulation (GPSR), FluxThread Labs, Inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

Size guide