The Ultra Flexi Flask 350ml is a soft, collapsible flask designed to compress as you drink, so there's no sloshing or bouncing weight in your pack and less effort needed to draw each mouthful. The durable TPU construction has a textured grip for secure handling on the move, and a wide opening makes it easy to refill or clean at a tap or stream. A bite valve keeps the flask spill-proof in storage while still allowing a quick, one-handed drink without unscrewing a cap. At just 37g empty, it's an easy way to carry extra water or diluted electrolytes on a run, hike or multi-day trip without adding real weight.

Features

• Durable TPU construction with a textured grip.
• Compresses in volume as you drink, reducing sloshing.
• Wide opening for easy filling and cleaning.
• Interchangeable bite valve for one-handed, spill-proof drinking.
• BPA, PVC and phthalate free.

Specifications