Size: S=US(4-6), M=US(8-10), L=US(12-14) XL=US(16-18). These mens vests outerwear are U.S. size and please check the SIZE CHART to select the appropriate size. Resistant Material: Men outdoor vest is made of high quality fabric material, soft and breathable, lightweight, tough to deform and wear resistant, durable enough and make you enjoy your time on the way. Design: This utility vest men feature with lapel collar, quick dry, mesh lining, plenty of pockets, that adds a touch of elegance and makes it suitable for both casual and semi-formal occasions. Multi-Pockets: This safari vest men has 8 pockets including 2 hidden pockets. This mens windbreaker vest is both highly storable and fashion stylish, allowing you to store small items such as cell phones, keys, and glasses. Occasions: The lightweight vest men can wear as fishing vests, cargo vest, safari vest, photographer vests, hunting vest, travel vest, volunteer vest, tactical vest, military vest, outdoor work vest or adventure vest.