Soft Flask, 500ml Large Mouth Hydration Bottle, Foldable, Made of TPU, Green, for Running, Trail Running, Trekking, Marathons, and Mountaineering.

[What is a Soft Flask?] A Soft Flask is a water bottle made of soft resin that can be folded up compactly when empty. It's easy to drink from anywhere, anytime, for athletes. It's a foldable soft flask. Since there's no cap to open or close, it's easy to drink from; simply place it in your mouth, chew gently, and sip. [Material] Made with BPA-free, food-grade silicone and durable, flexible TPU (thermoplastic polyurethane). It's harmless, odorless, and highly safe. New bottles may have a slight odor. Before first use, adding rice water, green tea, sugar cubes, or vinegar can help reduce the odor. Additionally, cleaning with baking soda is recommended. Suitable temperature: 0-40°C. A dust cover is attached to the spout to prevent stains. [Soft so it won't hurt your body when worn] When using a hard bottle, it can be hard and cause pain when it touches your body when worn for a long time. Soft flasks are soft, so they almost never cause pain even when worn for long periods of time. They're perfect for a variety of outdoor activities, including jogging, mountain climbing, cycling, kayaking, trail running, hiking, camping, and traveling.