Nalgene TPE Bladder Reservoir

Special plolymer eliminates nearly all plastic odor and taste

Durable Thermoplastic Elastomer (TPE) construction stands up to wear and tear, while doing away with annoying crinkly noise

One-piece, seamless, tubular design means less chance of leakage or breakage

Bib Bore has a standard 63mm wide-mouth cap with threads matching most water purifiers and filtration devices