JoyiQi Hydration Bladder 2 Liter Water Reservoir for Water Backpack Hydration Pack System(Hiking, Camping, Cycling, Hunting), Water Bag with Large Open Easy to Clean, Strong Material FDA Approved BPA-FREE & FDA APPROVED: Food-grade premium quality anti-bacteria materials, strong TPU bladder material(NOT PVC) is pressure-tolerant and wear-proof. Manufactured with leak proof sealing technology; LARGE OPENING FOR EASY CLEANING: Easy to clean and dry using the large opening that provides access to inner surfaces, enjoy cold water by easily adding ice from a scoop or an ice dispenser; SOFT SILICONE MOUTHPIECE WITH SHUTOFF: Effortless sipping and wholesome flow with soft and durable BPA-Free mouthpiece and tube, with leakproof ON/OFF shutoff and dust cover; VERY EASY TO USE: Mouth piece with a valve switch to prevent leakage. Just pull out the water TUBE, unplug the DUST cap, then gently bite the silicone mouth piece of the tube, there will be fresh water injecting to your mouth, to have water without stopping your activity; GREAT OUTDOOR GERA: Great for outdoor sports, like Hiking, Camping, Cycling, Climbing, Hunting and Running, Buy with confidence with our no-questions-asked 60-DAY FULL REFUND Guarantee!