UltrAspire UltraFlask 550 Hybrid Bottle Women's Shorts computer-optimized outsole and updated tread

computer-optimized outsole and updated tread pattern

anchors this wind resistant

Improved wicking and breathability with odor control keeps feet fresh mile-after-mile

Lightweight and simple for daily training

Best for: 2-3 runs per week

UltrAspire UltraFlask 550 Hybrid Bottle Women's Shorts computer-optimized outsole and updated treadUltrAspire introduces yet another milestone in hydration history! All the benefits of the sport bottle without the downsides and all the benefits of a soft flask without the usual problems such as taste and staining from carbohydrate drinks. The UltraFlask 550 Hybrid Bottle is a cross between a hard bottle and a soft flask. This bottle has a body shape that conforms to the place its kept for the ultimate comfort, access, carriage and squeeze ability.