Purchased at Uniqlo Size: M Chest: 88 to 96 cm I accidentally bought the wrong size, so it's new and unused. It's a thin material, so it won't be noticeable under a business shirt. Please understand that this item has been stored at home and may have aged slightly. Merpay Mercari Delivery Free Shipping Cold Protection Wintry Winds Year-End Heattech Warm Material Pufftech Down Shirt Innerwear Hokaron (Japanese brand of disposable body warmers) Thin