- Under Armour Toddler Size Chart - Under Armour Little Girls' Size Chart - All Under Armour® Apparel features a tagless design or tear-away tag with no left-over pieces. - These Under Armour® Kids Reflect 2-in-1 Shorts feature a built-in perforated stretch mesh compression liner for added support and ventilation, layered beneath a stretch-woven outer short for unrestricted movement. Designed with an elasticized waistband, short length, flat front, and brand logo on the left leg, they're perfect for active days. - Pull-on style. - 90% polyester, 10% spandex. - Machine washable. - Imported.