Leak-proof and -proof water bottle: ergonomically designed with a flip- lid and a tapered spout to prevent water leakage. Camping Water Bottle: This water canteen made of PE and oxford material, which is corrosion-resistant, safe and healthy. Occasion: Military Water Bottles very suitable for travel, gym, yoga, outdoor camping, hiking, biking, mountaineering, skiing, surfing. Easy to carry: The water bottle bag has an adjustable shoulder strap, which can be hung on a backpack or belt. The perfect choice for travel and sports: drop-resistant, flexible and durable water bottle, equipped with a backpack or sports bag.