UltrAspire Softflask w/ Straw & Bite Valve (500 mL)

UltrAspire continues to push the envelope with our collapsible bottle. With a 500 mL (16 oz) capacity, the soft bottle features an angled bite valve

SOFT FLASK 500 ML / 17 FL OZ WITH STRAW / ULTRA 100K + SERIES – WEIS USA / AMÉRICA

Best Water Bottles for Running in 2024 – iRunFar

SOFT FLASK 500 ML / 17 FL OZ WITH STRAW / ULTRA 100K + SERIES – WEIS USA / AMÉRICA

Ultraspire introduces yet another milestone in hydration history! the ultraflask 550 hybrid bottle has all the benefits of a softflask but with the conveniences of a hard bottle. The bottle is designed to sit as close to the body as possible to minimize movement when full. the soft-body shape helps with rapid access comfort and squeeze. the large cap opening easily fits ice cubes and is covered by a high flow push/pull valve. Made in the usa.

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