Under Armour Boys' UA Base™ 2.0 Crew Long Sleeve - Black Size (Kids - Unisex Clothing):XL • Microfiber collapsible heel

• Microfiber collapsible heel

stretchy UA IntelliKnit upper for a super-breathable sock-like fit & feel

these pants are the perfect blend of practicality and style

Lightweight construction for easy movement

finished off on an ultralight outsole with elastic laces that keep these 'lil dudes securely on

Under Armour Boys' UA Base™ 2.0 Crew Long Sleeve - Black Size (Kids - Unisex Clothing):XL • Microfiber collapsible heelUA Base 2. 0 is built for cold weather and high activity levels. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes. UA Base 2. 0 Active Baselayer is lightweight, flexible & breathable for high activity performance in cool conditions Soft, brushed grid interior traps air against your skin, closely managing your body's microclimate to keep you warm & comfortable Material