Birkenstock BirkoClassic Arch Support Insoles Width:Narrow semi-rigid orthotic arch support that

semi-rigid orthotic arch support that is for all arch types

The anti-fatigue core redistributes pressure

this product has been renamed to the Spenco Gel Comfort + Support Insole

Additional gel strike padding under the ball-of-foot rounds out the insole in terms of ensuring that your foot has shock absorption where it needs it most

microfiber lining

Birkenstock BirkoClassic Arch Support Insoles Width:Narrow semi-rigid orthotic arch support thatProduct Details Overview: The 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