I am 173 cm tall and weigh 60.3 kg, the Large fits me perfectly. I decided to remove the liner and now the shorts are are even better. The liner is described as a "pouch" but it is really a full brief style liner, like in most running shorts. I would describe these as half-split shorts. I think you could easily make them full-split by taking out the stitching at the split, although I have not tried it. I might get another pair in white, I wish there was a red one available. One suggestion, a key pocket would make these shorts much more practical!