Under Armour Men's UA Scent Control ColdGear Infrared Handwarmer 1 Size Fits All Men's UA Scent Control ColdGear Infrared Handwarmer Exclusive UA Scent Control technology lasts longer and works better, keeping you undetected ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb and retain your own body heat 12 oz. PrimaLoft insulation is lightweight, water-resistant, breathable and can be compressed without losing warmth Can be worn around the neck or waist (Sizes 28" - 54")