1. Multiple Functions: Hiking, walking or jogging with both hands free while still having easy access to bottled water using the detachable, adjustable and comfortable padded shoulder strap, or using the holders special buckle for attachment of the bottle cover onto your backpack. You can even bring along an iPhone sized phone in 1 of the 2 front pockets and have your credit card or key in the other pocket. 2. Premium Material: Our water bottle Carrier Bag is made of Soft neoprene material,which makes it more sturdy & lightweight and comfortable, it's Great for Stainless Steel and plastic water bottles, sport and energy drinks,it will fully protect your bottle surface from being scratched, scraping, extrusion and so on. 3. Wildly Application: Our water bottle sleeves are compatible with most half-gallon /64OZ sports water bottles and can be used in multiple scenarios such as cycling, mountaineering, camping and fitness. Both adults and Kids can find great use in this Newfad water bottle carrier. 4. Easy to Clean: Premium Neoprene material makes this bottle carrier is not only very durable but also easy to clean. Not easy to deform in long-term use.