I think the purpose is to protect clean clothing from dirt on shoes, not to protect shoes. Definitely flimsy as other reviewers stated. May not last long with regular use or any abuse, but okay for a trip to keep clothes from getting shoe dirt on them (in a suitcase). My ladies size 10 shoes fit fine. Updated after 2 week trip: I was able to fit 2 pairs of TEVA hiking sandals and 2 pairs of Chaco flip flops (size 10 ladies and size 10 mens) in the 1 bag by placing a flip flop underneath the sandal in each section. I also packed dirty clothing in with the shoes on the return flight. Definitely an improvement over plastic grocery bags for shoes in the suitcase and had no issues with quality, yet. (On the flight out, I packed 3" ladies size 10 wedge sandals with flip flops and the same mens sandals mentioned above. Only 1 pair of ankle high men's size 10 hiking boots will fit.)