- Under Armour Little Girls' Size Chart - Under Armour Toddler Size Chart - All Under Armour® Apparel features a tagless design or tear-away tag with no left-over pieces. - Let her move with confidence and comfort wearing the Under Armour® Kids Athletic Dress. It features a scoop neck, sleeveless design, signature brand logo at the chest, and an above-the-knee length with a straight hem. Designed for active girls who love to play, train, and be themselves, this pull-on style dress features an interior romper with a back cutout for ease of dressing. - 82% polyester, 18% spandex. - Machine washable. - Imported.