While these are a great price and pretty comfy the hem for the thigh is incredibly tight. I had to rip some of the sems of my lobster pair as they were digging into my thighs. That being said they will stretch a bit after you first use and wash them, particularly in the groin and butt, BUT not as much laterally along the thigh. If you don't have larger thighs it shouldn't be a problem, but mine are 16in around where the thigh hem is, and I ordered a medium and they were too tight. Ordering a size up could be good but the amount of stretch that happens in the groin and butt with wear makes them incredibly roomy and less supportive.