I have different holsters for different jobs.
Top Left holster is Holster Kings INWB slide. I bought this when I needed an ISWB and didn't have my High Noon Split Decision with me so I picked it up cheap (Less than $20.00 OTD)
Middle top Row My IWB Tuckable is High Noon Split Decision High Ride. I wear this one when I am wearing a Polo shirt that needs tucking in. It is re enforced around the top of the holster for re-holstering. Good tuckable.
Right top row: Fobus Paddle holster for Range use or if I know I will be taking my Gun on and off.
Bottom Row Left:
The Black Beltslide is a DeSantis Mini Slide and is my most carried. I wear it under my Button up Harley shirts or my Hawaiian shirts.
Bottom Row Middle:
The Brown beltslide is a Kramer Belt Slide which used to have a thumb break strap but it was made for a G21 and I wanted to use it for both so I lopped off the thumb break strap

and it worked well. I used this from around 91-92 until 2007 when I got the DeSantis Mini Slide. The DeSantis is a more "Robust" holster and seems to have more cow to it!

Bottom Row Right:
Uncle Mikes Mirage. Works well but isn't as friendly when re holstering.
Not pictured is a Galco Fanny Pack/Belly Pack I use it when it is really hot and I am not wearing my Button up Harley/Hawaiian Shirts.