This Chattanooga ColPac Cold Therapy 23 Neck Contour Ice Pack measures at 23 long is made from a Blue Vinyl and is Latex-Free. This Blue Vinyl Colpac is also reusable and an excellent therapy pac for sports injuries or everyday health issues. Every ColPac is filled with a non-toxic silica gel that will remain pliable for every therapy treatment. Another great thing about this ColPac is it will not sweat all over a patient. The ColPac can also be used for up to 30 minutes at a time in order to reduce any acute pain possible swelling and even a fever. In order to recharge this ColPac all one has to do is place it back in the freezer. This ColPac was designed for heavy clinical use for effective pain relief has been filled with a non-toxic silica gel and will remain pliable during any therapy treatment. It is also good to remember the ColPac will stay cold for up to 30 minutes in order to reduce any swelling acute pain and fever. Patients will be assured that this this ColPac is Latex-Free filled with a bentonite and glycol blend to keep from freezing sold and finally a one-year warranty.