FWIW, I was looking to get an IWB for my M&P 9mm, I have two Milt Sparks for two other guns just for reference. I decided to try Alien Gear, for the price, if it didn't work, no biggie. They have a great rep, I used the M&P at a tactical skills day, IDPA shoots here in Florida during the summer. Sweating through leather holsters is NO problem, the Alien Gear could deal with that. I've had it for a couple of weeks, worn it a couple of half days, a couple all day trips, I'm pretty impressed so far. I like being able to change the cant, adjust how tight the holster grips the gun. Not to thrilled with all the screws but once I've settled on the position, I'll loctite 'em all. I had an issue and a few questions, got a hold of their customer service 'chat' on a Saturday, New Years eve no less! A picture or two back and forth, problem solved. Overall, I'm real impressed especially for the money!