DeSantis Gunhide Slim-Tuk, Inside Waistband Holster, Fits Sig P365 X-Macro, Ambidextrous, Kydex Construction, Black 137KJ2XZ0 The Slim-Tuk is a new minimal ambidextrous IWB holster fashioned from Kydex sheet. One of the most unique features about this IWB holster is that it uses their tuck-able 360 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 is precision molded and has adjustable tension and a rugged 1.75 in. nylon clip.