• Silicone
• Kettle strap:bottle straps are adjustable, suitable for most stainless steel cups, plastic bottles, coffee cups and other water bottles,drinking bottle holders
• Crossbody bottle sleeves:the creative design of the water bottle carrier strap will give you a wonderful experience and bring you a mood,sports bottle holders
• Portable bottle sleeves:simple design, easy to use, can be hung on the shoulder, it is very useful, it can also be hung on bicycles, carriages, backpacks, etc,bottle holders for hiking
• Portable kettle straps:durable material makes this bottle holder not only very durable, but also easy to clean, not easily deformed with long-term use,adjustable bottle sleeves
• Drinking bottle sleeves:this portable water bottle holder is suitable for a variety of bottles, such as, stainless steel, glass, plastic bottles, and energy drinks,bottle sleeves for picnic