BOTTLE SLEEVE SIZE: Diameter 6.8cm, height 18cm. If the diameter of your bottle between 2 - 2.6 inch (5-6.6cm), then it would fit. In other words, it fit for 12 to 18 oz glass or plastic bottle. STRETCHY MATERIAL: The sport bottle sleeve is made of neoprene. It feel soft, stretchy and lightweigh, keep water cool or warm, and keep bottles from sweating. The sleeves rim hugs the bottle snugly, easy to take on and off. Finger strap is strong to hold the bottle. It protect your bottle from scratch damage and against hot. GOOD INSULATION: stitching connect the strap strongly to the holder. The glass bottle sleeve can protect the glass body from damage and against hot. Not afraid of the crease, because it can repair itself. Portable neoprene bottle sleeve is suitable and very convenient for indoor and outdoors use, such as camping, swimming, driving, fishing and other activities. It is also easy to clean, and weather . 7pcs different color of bottle sleeves. it is really affordable. It help keep your beverage cold or hot. You can use different colors every day in one week. How cool! Use it to protect your cup, and . Color: Multi-color Material: Neoprene Size: 18 cm in length, 6.6 cm in diameter Package Contents: 1 X grey bottle sleeves 1 X black bottle sleeves 1 X blue bottle sleeves 1 X green bottle sleeves 1 X pink bottle sleeves 1 X rose sleeves 1 X navy blue bottle sleeves Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.