I received a IWB holster for my Sigma 40F about 2 wks ago. Excellent!! Living in the UP of Mi I seldom have a problem concealing my weapon. Last summer I was traveling from MT to PA and ran into 95+ temps which made my denim shirt look out of place. The holster is horsehide, natural, IWB, metal clips, hand stitched, hand boned, and has a slight curve to it to conform to the body. I have others but could never wear them for more than an hr without having to adjust all the time. I was thrilled by the fit and the quality. I wore it between 6-8 hrs a day and did NOT have sciatic pain at the end of the day. It has smooth side against skin, draw and re-holstering was easy. He offers cowhide,horsehide,some exotics,kydex, hybrids-( kydex + leather ), metal or kydex clips, belt loops, IWB, outside carry and other custom work. Function, fit, construction, comfort at a great price. You can see his work @
www.adamsholsters.com.