"Ok, to start this vest truly is a one size fits all. I am 16 but only about 5'2 and skinny but this vest is great. When i have on my BDU camo shirt this vest fits super snug and it is very comfortable. I can fit 6 M4 style mags, one extra pistol mag, three speed reloaders, and my walkie talkie. The back of the vest also has a pouch for carry whatever, i use it for extra bbs. Overall this vest is amazing and made of great high quality material. It is definitely worth the money."