- Simple push/pull nozzle with high flow.
- Soft and comfortable against the body.
- Ultra squeezable with quick recharge.
- Food-grade LDPE and made in the USA.
UltrAspire 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. This great feeling, easy stowing bottle is a hybrid between a hard bottle and a soft flask! The light weight super-squeezable UltraFlask™ stands alone, is fillable and easy to clean, has high flow and fast recharge, is soft, flat and stable against the body, is easily accessed and returned to a vest pocket even when empty, and its great for waist packs too! The UltraFlask 550 Hybrid Bottle is BPA free.