DeSantis Gunhide 137, Slim-Tuk, Inside the Pants Holster, Fits SIG P938, Ambidextrous, Black Kydex 137KJ37Z0 The Slim-Tuk(R) is a new minimal ambidextrous IWB holster fashioned from Kydex(R) sheet. One of the most unique features about this IWB holster is that it uses their tuck-able 360(R) C-Clip" which affords the wearer unlimited mounting options. The hardware can easily be reversed to change from right to left hand. The Slim-Tuk(R) is precision molded and has adjustable tension and a rugged 1.75" nylon clip.