Smart design, meet peak performance – also known as the Shape-Shift Reservoir. Our time-tested creation for hydration on the go, it can take a serious beating, it fits nicely in most packs and it’s fully reversible for easy cleaning. Durable, dependable form and function.

SHAPE-SHIFT™ BAFFLE LOCKS FOR A SLIM PROFILE AND INCREASED STABILIZATION; UNLOCKS FOR FULL VOLUME AND REVERSES FOR EASY CLEANING

SLIDE-SEAL™ TOP OPENS WIDE FOR EASY FILLING AND CLOSES TIGHT FOR A LEAKPROOF SEAL

HIGH-FLOW BLASTER™ BITE VALVE SELF SEALS AFTER EACH SIP AND FEATURES A TWIST ON/OFF BAR TO PREVENT LEAKS WHEN NOT IN USE

PLUG-N-PLAY™ CONNECT SYSTEM LETS YOU EASILY DISCONNECT THE DRINK TUBE (AN AUTO SHUTOFF VALVE PREVENTS LEAKING) AND REMOVE THE RESERVOIR FROM YOUR PACK FOR CONVENIENT REFILLING

FULLY REVERSIBLE FOR EASY CLEANING AND DRYING, TOP-SHELF DISHWASHER SAFE

MADE OF ULTRA-DURABLE, ABRASION RESISTANT TPU & RF WELDED SEAMS FOR SUPERIOR DURABILITY AND ELASTICITY

CAN BE FROZEN OR FILLED WITH HOT WATER (MAX TEMP 60° C / 140° F

SAFE AND RELIABLE, 100% BPA & PVC FREE