Sports Imagery-Hydration Bladder Water Reservoir Pack -3 Liter /100 Oz Extra Thick Military Quality with Insulated Flow Tube for Hiking, Cycling, Climbing, Backpack. 3.0 Liter (100 Oz.)-4.2MM EXTRA THICK PREMIUM QUALITY HYDRATION BLADDER: PEVA Material is Pressure-Tolerant & Wear-Proof. Soft Mouthpiece for Easy Sipping. Compatible With Most Hydration Backpacks. BPA-FREE & FDA APPROVED: Food-grade premium quality anti-bacteria materials. Manufactured with leak proof sealing technology LEAK-PROOF: Wide-mouth opening with slidelock closure is leak tight and makes it easy to refill, clean and dry inside the bladder. Selflock connector allows you to unhook the tube quickly without any leaking. INSULATED TUBE: Premium Quality Neoprene Tube Cover Resists Temperature Changes in Hot/Cold Weather. QUICK-RELEASE TUBE is Detachable and AUTO-SHUTOFF VALVE prevents leaking with tube detached. 100% LIFETIME REPLACEMENT GUARANTEE- Iron Clad Lifetime'HASSLE FREE'Replacement Guarantee. In The Unlikely Event You Have Any Issue With Our Product, Simply Contact Us and We Will REPLACE It.