Stretches to Fit: Our sok grip is uniquely designed to fit a variety of drinks. Whatever your style, we’ve got you covered [literally]. Stops Condensation and Slippery Cups: Keep your hands warm and dry with the BOTL SOK non-slip grip and comfortable cushy sleeve. Our unique covered bottoms and stretchable fit reduce and capture condensation. Enjoy your drink without desk puddles, table rings, or wet, slippery hands. Durable No-Scent Material: Made from durable & flexible 4mm thick 100% neoprene with strong stitching. Our insulated sleeves can withstand stretching, folding, and anything life throws at it. Designed to fit 32oz Nalgene Bottles, but will also fit 48oz Nalgene or Hydroflask water bottle (sok covers less of the bottle height). Different colored strip in the back of sok - see images for color. Loop for carabiner. Introducing Botl Sok: Same great benefits as our Java Soks and Soda Soks now for your water bottle. No more puddles or wet hands and your drink stays colder, longer.