Reusable - Can be used for BOTH warm and cold compression. The gel pack is reuseable and can be freezable while still remaining soft or heated in the microwave. Serves as an ice pack or heating pad. Perfect for any body part: Knee, Arm, Thigh, Leg, Foot, Lumbar, Cervical, Upper and Lower Back, Shoulder, Rotator Cuff, Neck, Calves, Shins, Hips and more Hot Or Cold Compress – The gel packs are safe for the microwave and freezer to easily rotate between icing and heating injuries. Keep one handy in your fridge for a first aid icing emergency or your everyday comfort from pain Versatile– Useful for common conditions, broken bone, fever, bruise, sprain, strain, hernia, plantar fasciitis, tendinitis and shin splints. Useful for a variety of sports athletes, including: football, soccer, running, gymnastics, swimming, golf, tennis, baseball and basketball Healthcare Choice – Used by thousands of Physical Therapists and other healthcare professionals for cold therapy to aid acute & chronic pain, muscle pain, arthritis, inflammation, swelling, menopause-related hot flashes, and injury recovery PREMIUM CONSTRUCTION – Double sealed to prevent leaking; with extra thick Polyester exterior. Washable and reusable. Cold therapy pack is latex-free and is filled with non-toxic silica gel, so it's safe for all ages to use.