We purchased two sets of the silver. They really stood out in the airport carousels. These things held up great I would highly recommend them to anyone. They were within American Airlines dimensional specs and we loaded the largest ones to 50 lbs each and the smallest ones to 40 lbs each. No issues at all. We were able to get 3 full sets of dive gear (minus tanks and weights) plus my youngest child's mask snorkel and fins in a large one and a small one.The omnidirectional wheels on the large and medium size are simply AWESOME!! We managed with the nice roller blade style wheels on the smaller ones, but the omnidirectional wheels made life in the airport, as well as getting to and from the airport, and hotel room a dream..I would highly recommend these to anyone looking at them!!