WINMI Hydration Backpack Water Backpack with 3L BPA FREE Water Bladder - Keeps Liquid Cool Up to 4 Hours - Great for Outdoor Sports of Running Hiking Hunting Camping Climbing Cycling Skiing;

Tactical backpack:
1. Rugged 600 Denier Polyester heavy-duty construction with PVC lining, Waterproof nylon fabric prevent the items inside from being wet
2. Dimension: 43cm (High) X 18cm (Width) and 460g in weight
3. Lightweight and Streamlined, Breathable and Abrasion resistant with the Soft-Air Mesh Design
4. Comfortable and Adjustable shoulder/chest/waist straps fit anyone from teenagers to adults. Fit Chest size from 27" up to 50"
5. Whistle buckle on chest straps for emergency

Reversible Reservoir:
1. Made of ultra-durable, abrasion resistant 0.4mm thickness TPU & RF welded seams. Safe and reliable, Food Grade, 100% BPA fee & FDA approved
2. Slide-seal top opens wide for easy filling and closes tight for a leakproof Seal (no cap threading required)
3. Elite Surge Valve 36" Drink tube. Infusion Tube insulates and protects
4. Plug-in-play Connect System (auto shutoff valve) let you easily disconnect the tube from the reservoir
5. Silicone high flow bite-valve, FDA approved. Bite valve self-seals after each drink, eliminating annoying drips.
6. Dust cover protects silicone bite valve from collecting dirt
7. Can be frozen or filled with warm water(max temp 122째F/50째C), they feature a volume approximation on the front
8. Fully reversible for easy cleaning and drying, top-shelf dishwasher safe

Pack including:1 x Tactical Hydration Pack Backpack
1 x 3L/100OZ TPU Bladder Reservoir