XUEMEI Flexible use: When the water bottle is empty, it can be flattened or rolled up. Once filled with water, it can be hung with hooks. Convenience: This hydration bag can be folded, rolled up or flattened to stand when full. You can take it anywhere, anytime. very happy. Flexible: Stand upright when full, fold, roll or flatten when empty. Wide range of applications: Best for camping, hiking, cycling, running, jogging, gym workouts, summer camps or traveling. Material: Plastic material, safe, non-toxic, light weight, reusable, healthy and environmentally friendly. Leak-proof and fail-safe. Collapsible Water Bottles,Mountaineering Water Bag, Foldable Water Bottle Set Of, Reusable Portable Collapsible Water Bag, For Hiking Adventure Travel 700ML-4PCS Bottles Easy to fill, easy to roll up, nice for hiking camping jogging Mountaineering cycling or trip, collapsible water bottle is helpful in keeping water replenishment. Water is life. Make your travel easy - weighs less than a third of a smartphone, easy to carry with compact case. Take this with your backpack, tote bag for your travels, hiking, camping or any type of outdoor experience. PROPERTIES 1. When not in use, it can be easily folded, rolled or flattened and stands when full 2. Made from high-quality and nature-friendly materials 3. Collapsible water bottle is easy to use and suitable for everyone. Best for Camping, Mountaineering, Hiking, Biking, Running, Jogging, Gym Workouts, Summer Camp Travel and other outdoor activities SPECIFICATIONS Color: Black, Blue, White, Red Material: PE+PA+PET Capacity: 700ml Size: 23*13cm PACKAGE CONTENTS Package Including4pcs* Collapsible Water Bottle.