AETREX. L105M. MEN S IN-STYLE MED HIGH ARCH WITH METATARSAL SUPPORT ORTHOTIC. BLACK. Aetrex In-Style Orthotics are designed for providing support in fashion forward shoes that have little or no removable depth. This orthotic features our signature Aetrex Arch Support to help biomechanically align your body help prevent common foot pain such as Plantar Fasciitis Arch Pain and Metatarsalgia. L105 - Our orthotic for medium to high arches with forefoot pain featuring a posted heel to control over-pronation and provide balance.