This jacket is designed based on the helicopter jacket adopted in the late 1980s, featuring a big silhouette. It is made from 100% linen, which provides warmth, durability, heat dissipation, and moisture-wicking properties. Linen is a natural functional material that can be used year-round; it keeps you warm in winter and allows excess heat to escape in summer while absorbing sweat and drying quickly. Material: 100% Linen Fabric: Plain weave using size 14 yarn with thicker threads in both directions Unique Texture: Characteristic wrinkles and a distinct elasticity with a firm yet soft feel Natural Luster: Creates a rich and sophisticated look Features: Chin strap on the collar, strong 8-zip double zipper, back pocket for a 13-inch PC, removable reflective CAHLUMN logo patch on the left chest Note: The color of the product in the images may differ from the actual product due to lighting conditions outdoors or indoors and angles. Please understand that there may be slight differences in size perception as well.Note: Please check the quality label and attention tag attached to the product when wearing and handling it.