Birkenstock BirkoClassic Arch Support Insole (Unisex) - Black Width:Narrow (N) This feature

This feature

Temper weave fabric to reduce moisture and odor

while the exclusive outsole with Vibram® Megagrip compound ensures traction and grip on all terrain

These boots are made with KONNECTFIT heel-capture system for a locked-in feel

Warm wool-covered footbed is sure to massage your foot with each and every step

Birkenstock BirkoClassic Arch Support Insole (Unisex) - Black Width:Narrow (N) This featureThe Birkenstock Birko Classic Arch Support Insoles are a 3 4 length, rigid orthotic that is designed for all arch types. They feature a deep heel cup for natural cushioning and shock absorption, a natural contoured arch support for longitudinal medial arch support, and a metatarsal support with a gentle raised platform for raising toes into the natural position. The Birkenstock Birko Classic Arch Support Footbeds are constructed of Birkenstock's