The SOFT FLASK 150ml/5oz is flexible and compresses as you drink to eliminate water bouncing inside. Reduces sucking effort. The valve won't leak until you bite it.
Features: • Compression : Eliminate the annoying sloshing of water in your bottle. • This soft flask compresses as you drink, letting you know how much you have left. • Lightweight : Minimal construction and shrink while you drink means it gets lighter as you run! Easy drinking : Super fast and accessible, a light squeeze gives ample hydration, without leaking.