This is Carhartt's large Work Bag. Built out of tough and tested 1200 and 600 denier water-resistant polyester. It offers a big, wide-mouth opening so it's easy to get in and out of. And special bottom rails give it added support to stand up straight. All corners are reinforced, all stress points are riveted, and the whole thing is job-tested for strength. Outside you'll find 17 handy pockets, a utility loop, and a non-slip easy-carry padded shoulder strap. Inside there are 10 more pockets, a tape measure clip, and all the room you'll need to get the job done. Carhartt's big Work Bag. It's light weight, but heavy duty.For over 115 years, Carhartt has manufactured premium workwear known for exceptional durability, comfort, quality of construction, and fit that you can feel in the fabrics and see in the performance.