Replacement Soft Flask With Exo Spine (590ml)

This 590ml soft flask is designed for optimal hydration on the go. It features a twist locking cap with a bite valve for leak-proof transport, making it ideal for runners and outdoor enthusiasts. The wide 42mm opening allows for easy filling and adding ice, while the flexible design conforms to pockets for comfortable carrying. The flask shrinks as you drink, reducing movement and making it easy to pack away when empty. Compatible with hydration vests, belts, and packs, this flask is a versatile and essential companion for your fitness and outdoor activities. Replacement part - no packaging.