Nanxson TM Men's Outdoor Fishing/Photographing Vest MJM0008 Material: polyester and mesh; Size: please refer to the size chart by the last image from nasisa ONLY; This is SMALLER regular US size! It is recommended that you choose one size up if you are not sure! :) Please measure your OWN size before choosing a size, especially the BUST size! suit for many outdoor activities like fishing, cycling and photographing; Any question, please feel free to contact us! Welcome to nasisa store!