Under armour men's heat gear armour mid compression shorts are ideal and extremely technical base layer wear that can boost you to new levels of training or fitness performance. these shorts form a natural pairing with the long-sleeved, short-sleeved or sleeveless heat gear armour tops with the same technical fabric spec. the ua compression fit works like a second skin which supports your muscles to enable you to complete longer periods at peak performance and then assist you towards a faster recovery ready to go again. ua armour is lightweight, perspiration wicking and muscle boosting to let you give of your best right through your training or fitness workout. ua heat gear keeps you feeling comfortable even in the hottest weather through its light weight and its efficient ua moisture transport system that dissipates sweat into the atmosphere. in addition, you benefit from upf 30+ protection from the sun's rays, four-way stretch that allows you a full range of movement and an engineered elastic waistband.