Our Sauna Blanket gets HOT so we require that clients wear long-sleeved clothing and socks. Unless, of course, you have a Sauna Blanket Insert to slip inside. This high-performance, reusable towel is designed to fit comfortably inside your Infrared Sauna Blanket and soak up all your sweat. An effortless, elevated upgrade. Crafted from 100% organic cotton combed long-staple cotton, which means your Towel Insert is hypo-allergenic, environmentally friendly, durable, ultra-comfortable, machine-washable, and quick to dry. In other words, your sweat sessions have never been this easy or elevated.