Stella McCartney x Adidas Size Small White Gray Perforated Short Sleeve Top Approximate Measurements Armpit to armpit: 21" Length: 24" Gently worn with no flaws. The Stella McCartney x Adidas Size Small White Gray Perforated Short Sleeve Top is a stylish and comfortable activewear top for women. Made from a polyester blend material, this pullover t-shirt features a crew neck and short sleeves, making it perfect for workouts or casual occasions.