Under Armour Play Up Shorts Junior Girls. These Under Armour Play Up Shorts are crafted with an elasticated waistband and drawstring fastening for a classic look. They feature flat lock seams to prevent chafing and are a lightweight construction. These shorts are designed with a signature logo and are complete with Under Armour branding. Key Features: Elasticated waistband, Drawstring fastening, Flat lock seams, Lightweight, Signature logo, Under Armour branding. Care Instructions: Wash according to care label. Keep away from fire. Size Guide: S - 7-8yrs, M - 9-10yrs, L - 11-12yrs, XL - 13yrs.