This product provides great protection for the Miller LPR 100 half mask respirator, which fits snugly inside. The zipper goes all the way around it, so make sure all the straps are inside! There is only one thing I wish this had, and thats a sling strap to carry this over my shoulder or crossbody-wise. Otherwise, its given solid protection for my respirator, even when its been dumped into my bag with heavy items like my water bottle.