These Versatile therapeutic boots from shires are for the lower leg to treat ligaments and tendons. Use hot or cold to assist with recovery after strenuous exercise or injury, reduce swelling, encourage blood flow to reduce inflammation, relieve pain, relax tight muscles and encourage blood flow. Gel packs can be heated in hot water or the microwave or cooled in water or the freezer. Comfortable neoprene, bound edges and touch close straps allow for a secure, supportive fit. Gel packs secure with touch close fastenings. See product packaging for instructions. Suitable for use on front or back legs. Sold in pairs. Hand wash cool. Do not tumble dry.