Motorcycle full body armor jacket Full zip front placket Stretch fabric crew neck for comfort without suffocation Hard shell padding in vulnerable areas of elbows and shoulders and arms Durable shield chest protector Abrasion resistant PP shield protects back and is used to protect critical internal organs in conjunction with front chest Removable spine and tail armor protection (by zipper) Wide waistband with added padding on back for support Ergonomic design for lightweight and comfortable wear. If you normally ride the bike for a long time, we recommend choosing this kind of protective armor gear to protect yourself effectively during riding. We have 7 sizes. Please choose the size that fits your selection. Size S: Height(61-63") Weight(89-110lbs) Medium: Height(63-65") Weight(110-132lbs) Large: Height(65-67") Weight(132-143lbs) X-Large: Height(67-69") Weight(143-154lbs) 2XL: Height(69-70.9 lbs) inch), Weight(15 4-176lbs) 3XL Size : Height(70.9-74.8") Weight(176-198lbs) 4XL Size : Height(74.8-78.9") Weight(198-220lbs) Please refer to these size guide to choose the right size. It is important to choose protective gear with a secure fit to ensure your riding safety.