520A Quilted Duck Coveralls, Men's, Black, Size Large100% cotton duck canvas construction is built for work in the most frigid conditions 10. 5 oz. (350 GSM) with 6. 5 oz. (220 GSM) poly filling Features 6 storage pockets: 2 back, 2 chest, 2 front Made with elastic waist, foot straps, and wrist for maximum versatility Features 2 way heavy duty brass zippers for easier movement and wider range of mobility Tool loop secures hammers, wrenches, and other essential items Material: Canvas Cotton Size: Large