UA Armour Boy's Fitted Shorts Fitted: A slimmer, more athletic cut. HeatGear fabric is ultra-soft & smooth for extreme comfort with very little weight. Mesh panels & wider back panel for extra comfort. 4-Way stretch construction moves better in every direction. Material wicks sweat & dries really fast. Anti-odor technology prevents the growth of odor-causing microbes. Engineered elastic waistband with ARMOUR wordmark.