I'm 6'1 230# athletic build with 36" pant size and got an XL. I was originally thinking of going with a L but when I measured my "waist" it actually measures more than 36" (at the navel) so I went with XL. I haven't sat in mine in the tree yet but it feels sloppy to me on the ground with way too long of straps after adjustment and the buttox webbing is bunched up so I'm concerned of snagging on briars and limbs walking into the swamps of Mississippi. Also, the lower attachment point for the leg straps extends onto my quads so far it hinder flexing my leg forward at the hip but the one on the waist belt helps to hold up the rear. I'm also concerned because I've gathered that a larger saddle with make your bridge longer and this could impede shooting. Wish they had better ways to explain proper fit and measuring, possibly a diagram, beforehand especially since you can't try them on at Sporting good stores.