If you need the toughest bag in the industry you go Veto Pro Pac. We have been using them for a few years now and they have yet to disappoint. Veto is releasing new ones to keep up with the demand and needs of the tradesman. The bags are made from the highest quality materials.
The bottom of the MC is just like any other Veto, it is made from a 3MM thick polypropylene base. This keeps out moisture when you set it down. The bag is 1800 PVC Denier Nylon so chances are you will never rip it and the marine grade hardware means it won't rust. it weighs 4 lbs and has 20 pockets with big pockets for meters or drills. Veto covers this product with a 5 year warranty. I doubt you will ever have to use it, every bag we have used has been top-notch quality. Check it the Veto Pro Pac MC via Amazon.