I'm selling this item because I washed it but the size didn't fit. The following information is from the official website: [RBC] [Short Sleeve] Retro Polo Shirt / Gray Item Number: 1622001-11_Q Product Features: 50% Cotton / 50% Rayon (Modal) Length Width Shoulder Width Sleeve Length Armhole Hem Width L 66 53 43 26 23 40 Features a smooth texture using high-twist cotton modal yarn. This high-gauge knit has a moderate thickness and is comfortable to wear even in summer.