Oboz is known for outstanding fit and feel, and our O FIT Insole Plus is a big reason why. While O FIT Insoles come standard in Oboz shoes, the O FIT Insole Plus is an upgrade in just about any other shoe. Now you can max out stability and support in whatever shoes youâ€re wearing with this trim-to-fit aftermarket insole. Dual-density EVA throughout provides both cushioning and durability, and special reinforcement under the metatarsal and heel adds extra protection to high-strike zones.