Loose fit. V-neck. One-way zip front. One button chest pocket. Two large lower patch pockets. Full-width rear stash pocket with dual button closure. 100% Cotton. Stylist Notes. Presenting the UW. reinterpretation of the US Navy safety vest, a timeless piece from the annals of military attire embraced by laborers and fishermen over the decades. Functioning as a highly practical tool vest, it proves ideal for stashing your daily necessities, whether nautical or otherwise. Chambray, a fabric with a plain weave, has been a staple in traditional workwear for centuries. Its finely woven structure makes it an excellent choice for temperature regulation, ensuring a cooling effect to keep you comfortable.