ponmuThe waist size is like expected for vanity size (as in, my waist is probably 34" but I magically fit into a 32" pant). These fit is trim, particularly in the legs. I have thicker calves and quads and felt the pants were snug there. If you have monster leg muscles you won't fit. There is a little bit of stretch, but not anything like OR Ferrosi or Rab Vertex pants that we've had on Massdrop before. Without looking at the care instructions, I would say that you'd be best to avoid high heat in drying, but that is best practice with all outdoor apparel. Also keep in mind that cotton will stretch a bit with use, unlike most synthetics.