Bought this to protect my bag which was going to be going through multiple airports on my trip through Australia and New Zealand. Very easy to use and I like that it folds up into it own pouch. The bag is pretty big though and swallowed up my Kelty Coyote 80. The main carrying strap is somewhat odd to use as well. BUT overall, it did hold up to the abuse going through multiple airports so in that sense it did its job.