First, I accidentally got a medium.I would have ordered a large, BUT it turns out this one fits fine--maybe I'm not the jolly fat man I think I am.Second, I see a review or two that say this breaks easily.well, I got a size smaller than I thought I should and I make it pretty tight.and I have used it for two weeks during daily work outs so far and--no breakage.I have been told by my doctor that I am allergic to latex, but this has NOT bothered me in the least.I use the treadmill for 30 min everySee full review