Our Linen Hot + Cold Therapy Pillow allows you to enjoy the healing benefits of an all natural heated or cooled therapeutic tool. Heat it to soothe and relax tension in your neck, shoulders or any muscle group. Freeze or refrigerate it to use as a cold compress. A welcome relief for sore muscles, cramps or night sweats with the addition of lavender to enhance your relaxation experience. Linen is a highly durable, hypo-allergenic, breathable natural fibre made from the stalk of a flax plant, making it the perfect fabrication for this highly eco-functional therapy tool.