With the Revitalice Sleeve cooling and warming pack, you have the ideal companion for every situation. It is used for knees, elbows or joints, adapts comfortably to the shape of the body and can be used warm or cold. The product is made of high-quality neoprene. Revitalice is very robust and retains its shape permanently. The gel in the sleeve has been clinically tested and is 100% free of harmful substances. Sizes: Our ice sleeves for arms and legs are available in sizes S, M, L and XL. They can be worn on the arms or legs. Use the size chart to adjust the sleeve optimally to the desired position. The sleeve should fit snugly, but not constrictively, to ensure good freedom of movement. If you are between two sizes, we recommend the larger version for pleasant cooling or warming. Note: The migraine mask is available in one size and fits almost all head shapes. It is not necessary to choose a size.