Nalgene Wide Mouth 48oz Silo Sustain unders armour stretch side panels improve ventilation

stretch side panels improve ventilation and freedom

Darn Tough packs 1

Because keeping you safe in every condition is our priority

Stretch Overflow Pocket: Quickly stash or shed a layer or rain shell

Along with clean lines of comfortably lightweight O-Matter™ and a lens shape inspired by our popular Hijinx® sunglass

Nalgene Wide Mouth 48oz Silo Sustain unders armour stretch side panels improve ventilationWhen you need greater capacity, the Silo is the ticket. It is leak proof and easily slides into standard packs and backpack side pockets. It is very durable and has the standard 63mm Loop Top cap. The neck configuration works with most major water purifiers and filters. Sustain bottles are made with material derived from 50% plastic waste. Each bottle is created from resin powered by next generation recycling technology that transforms plastic