1. Water bottle sleeves have a good good thermal insulation and protect your bottle from bump scratch. Besides, these sleeves will let your hands don't feel much cold, hot, or wet when you grab the can or bottle. Suitable for indoor or outdoor activities like camping, outdoor sports events, hiking, parties, and barbecues. 2. Suit for 17 oz water bottle; Material: Neoprene; Color: Grey; Fit for Can or Bottles Size: 65-70mm Diameter Bottle or Can(500ml); Sleeves Overall SIze: 65 x 180mm / 2.56"x7.09"(ID*Height) 3. These sleeves are suitable for metal cans, glass bottles, plastic bottles. Widely used for indoor or outdoor activities like camping, outdoor sports events, hiking, parties, and barbecues. Also, you can DIY the bottle sleeves yourself by printing some pattern,images on them. 4. The neoprene material is soft to touch and good to absorb condensation. Reusable and washable, you can use water to clean them. The zipper pull cords design is good for attaching to the bags or other places.