Mar 03 Hot Head WHERE TO BUYFind a convenient online or local authorized retailer near you.or Buy Direct Category: Accessories. Hot Head 30% of body heat lost during swimming is lost through the head. A thermal layer for hypothermia protection, plus an adjustable chin strap for comfort makes this cap ideal for distance and triathlon training. RELATED PRODUCTS Silicone Swim Caps STRAP REPLACEMENT Hair + Skin Care Nose Clip