CamelBak Insulated 0.75-Liter Bottle Sleeve Sleeve made of neoprene material keeps cold drinks cold and hot drinks hot as long as possible Neoprene material reduces bottle condensation and keeps hands dry Side grip strap makes bottle easier to carry and hold; attachment strap clips to any pack, stroller, treadmill, etc. Fits the 0.75-liter Better and Classic bottles Includes limited lifetime manufacturer's warranty