I fall between a M and a L according to your underwear size chart so I decided to get size L and I expected them to be a little big but they are so much bigger than I expected, specifically the crotch is much wider than expected so they crease a lot. They also fit like high-rise underwear on me reaching much closer to my bellybutton than the model picture, but that was expected because I did decide to go for a larger size. Otherwise I think that they are great, the knit weave is nice against the skin and the elastic band at the waist is a nice sturdy width. I am going to buy them again in a size M to see if the crotch wideness problem can be fixed and hopefully they will not be too tight.