Built for heroic performance the captain america logo compression ss kids t shirt leaves you feeling cool and drymade by under armour from lightweight polyester and elastane the compression fit gives your muscles an extra boost to make you feel invincible hidden in the fabric and waiting to be unleashed is heatgear technology to help keep you cool and fresh as the action heats up with 4 way stretch material allowing for greater mobility and to maintain shape the smooth flatlock seam const