The Base T-shirt, knitted with a fine mulberry and silk blend, embodies COS's philosophy of making perfect staples. Simple shapes and sophisticated shades of black encourage thoughtful styling. slim fit ribbed crew neck tubular hem Shell: 55% Mulberry Silk, 45 Cotton Excluding Trim/ Machine Wash size M back length is 65 cm/ model is wearing size M Material: 55% silk, 45% cotton Cleaning method: Machine wash at room temperature - gentle water/ use only non-chlorine bleach if needed/ hang dry/ iron set to medium temperature size chart item number size XS S M L XL 1 body width 45 48 51 54 57 2 Hem width 41.5 44.5 47.5 50.5 53.5 3 dress length 63 64 65 66 67 4 shoulder width 39.5 41 42.5 44 45.5 5 sleeve length 24.5 25 25.5 26 26.5 This size chart is a guide to help you find the right size. Since many items are designed in unique ways, we recommend that you also refer to the measurements listed in each product description. How to measure nude size bust: Please measure the circumference of the largest part of your bust. waist: Please measure the circumference of the thinnest part of your waist. Hips: Please measure the circumference of the largest part of your hip. We have been reviewing sizes to reflect customer opinions. Specifically, we have adjusted the sleeve length, length, inseam, etc. to pursue a more comfortable fit. During the size change period, products produced with previous measurements are listed as T or L. (34T for example) To request a return or exchange, please note that it is mandatory to provide a video of the unpacking of the package.