Platypus GravityWorks Replacement Reservoir 2L Counter Assault Secure Fit from Elasticized Crown:

Secure Fit from Elasticized Crown: Elasticized crown keeps net in place on head or hat no matter your movement or wind speed

This waterproof

D shape for good handling

it leaves a flexible water repellent treatment on individual fibers allowing moisture vapour to pass through

Platypus GravityWorks Replacement Reservoir 2L Counter Assault Secure Fit from Elasticized Crown:Replace worn out or damaged reservoirs, or adapt the capacity of your existing GravityWorks system to meet the needs of any trip. Unique, dual layer laminate combines a rugged exterior with a food grade, taste free interior. Reservoirs are interchangeable with any GravityWorks system, allowing you to create the capacity you need for any trip. 2. 0L Kit Includes: 2. 0L Dirty Reservoir with Quick Disconnect (female side). Ships to Canada Only