As with most selvedge/dry denim, most will say to size down one size to allow for stretching. These jeans stretch very slightly. I typically wear a size 32 and I can barely button the 3Sixteen size 31. After two weeks of wearing they have stretched, but not enough in the waist to be comfortable. My advice is to stay true to size unless you want a very slim fit in the waist and hips. Otherwise, these are very, very high quality jeans.