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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
The HydroKnit band is our fastest-drying
and an additional battery so you always have a backup
Inspired by their home country of Iceland
Available in sizes S-XXL
4.0 Blur SportFlex Band Color:Blur The HydroKnit band is ourSportFlex is ready for sweat, sport, and everything in between. Made from a highly durable soft touch silicone, its waterproof, dirtproof, sweatproof, and stainproof. With an adjustable closure system and ventilation details, its built for high performance and game for anything. Includes band, hook, clasp, and Fast Link slider that makes swapping bands easier than ever. Only compatible with WHOOP 4. 0.