Black Arch Springfield XD-S 4.0 IWB Hybrid Holster with Adjustable Retention, Holsters ACE-1 Genuine Suede - Our Variable Stiffness Backer, or VSB, features a durable leather face, a polymer stiffening insert, and a soft suede backing. This combination creates a sweat proof barrier between your body and the handgun, yet is flexible enough to move with you. Adjustable Retention - With adjustment screws all around the holster, you can hand tune the draw weight to fit exactly what you want for your specific situation. Customized Carrying - Adjust the height and angle your holster rides at for the perfect position for both concealability and comfort. Streamlined Design - By making each backer a custom fit for the the gun, weve made the ACE-1 more streamlined than ever before! Right Handed - Designed to be worn inside the waistband from the 3-5 oclock positions for a right handed shooter