Feature: 1. Material \u0026 Capacity: 2 Liter, EVA material, safe for drinking, pressure-tolerant. Double sealing side technique, durable and leakproof. 2. Easy to drink:  Just bite the mouthpiece to suck water. Pull to drink and push back to lock. It also has a dustproof cover for avoiding dirty. 3. Big Opening Mouth: Large enough to fill/refill water or put some ice cubes into it. Allows you to reach most corners inside to wash the water bladder. 4. Multi Purposes: Fit for most size hydration backpacks. Suitable for outdoor activities: hiking, running, skiing, camping, Cycle, climbing, etc. It is a nice gift for your friends, family, and colleagues who like outdoor activities. Specification: This water bladder is made of food-grade materials, safe for drinking. It is leak-proof and during exercise. Carried by hydration backpacks, it can free your hands to drink water during exercise. Just have it for a more pleasant adventure. Features: Material & Capacity: 2 Liter, EVA material, safe for drinking, pressure-tolerant. Double sealing side technique, and leakproof. Easy to drink: Just bite the mouthpiece to suck water. Pull to drink and push back to lock. It also has a dustproof cover for avoiding dirty. Big Opening Mouth: Large enough to fill/refill water or put some ice cubes into it. Allows you to reach most corners inside to wash the water bladder. Multi Purposes: Fit for most size hydration backpacks. Suitable for outdoor activities: hiking, running, skiing, camping, Cycle, climbing, etc. It is a nice gift for your friends, family, and colleagues who like outdoor activities. Specifications: Color: Transparent Gender: Unisex Age Group: Adult Material: EVA Pattern Type: Solid Style: Active Dimensions: 35 * 17cm / 13.8 * 6.7in Weight: Approx.140g / 4.9oz Note: 1. This size information is just for reference only, please check the above detailed measurement to choose the correct size, and allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package List: 1 * Hydration Bladder Package List: 1 * Hydration Bladder