Nalgene Wide Mouth 48 oz. Sustain Silo Water Bottle
Nalgene Wide Mouth 48 oz. Sustain Silo Water Bottle, When you need greater capacity, the Silo is the ticket. Guaranteed leak proof. Easily slides into standard packs and backpack side pockets. Durable. Standard 63mm Loop-Top cap. Neck configuration works with most major water purifiers and filters.