Grayl Ultra Press One-Way Drink Mix Valve Silva A safety whistle is incorporated

A safety whistle is incorporated in the grab loop for added safety and also to clip the skirt to your life-jacket to help keep it out of the way when off the water

It’s dyed with a low-impact process that reduces the use of dyestuffs

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1lb 9oz (710g)

Grayl Ultra Press One-Way Drink Mix Valve Silva A safety whistle is incorporatedDescription Features Specifications A feature no other drink thru filter bottle can deliver, the One Way Valve for the UltraPress allows electrolytes and sport drink mixes to be added to clean purified water without compromising the integrity of the filter. Note: an UltraPress One Way Valve is now pre installed in every UltraPress. Enjoy a drink mix no matter where your adventure takes you. Replace electrolytes lost in sweat and hydrate quickly. Four