Lacoste Short-Sleeve Tennis Sweatshirt, Grey/Navy Size: XS Lacoste Lacoste Short-Sleeve Tennis Sweatshirt, Gray/Navy Serve! This tennis style sweatshirt is the perfect blend of streetwear and prep. Quilted cotton blend pique fabric gives you substance, but the short sleeves and overlapping collar style keep you cool and comfortable on and off the court. Size 32, which is LaCoste for XS