• silicone
• Water bottle carabiner clip-- it is made of , safe and durable, with excellent texture
• Water bottle lanyard-- the elastic rubber design carabiners are easy to place and secure to the backpack
• Backpack water bottle buckle-- a simple and firm buckle for carrying water bottles, uses a sturdy clip to clamp the bottleneck
• Hiking backpack-- practical to save your backpack or pouch space. portable bottle holders
• Elastic bottle holders-- used for hanging water bottle when you are