Comfortable neoprene hock boots with built in pockets that hold the Ice Vibes massaging panel. Can be used on the inside or the outside of the hock with cold packs on either side of the hock. The cold packs can be heated in warm water to combine heat and massage before exercise to help reduce stiffness. Wireless, rechargeable, and portable.Custom and special order products typically have longer lead times. If you require your products to be delivered by a certain date, please call Customer Service at 1-888-837-3626 or email us at firstname.lastname@example.org.