Button closure US size,3 buttons, Pull On closure, 95% Cotton 5%Spandex Model in size XX-Large. This Aiyino big and tall polo shirt creates a casual look for any occasion. Aiyino offers menswear built for your proportions. Put your best foot forward. More Colors & Sizes ?C Choose from 6 colors and up to a 5XL. Proper big mens sizes, soft and comfortable, washes very well. Look great in these versatile athletic polo shirts for men that will become your go-to casual short sleeve shirt. Everyday made better: we humbly listen to customer comments and suggestions. and fine-tune every detail to ensure quality, fit, and comfort.