Birkenstock Birko Balance Arch Support Insoles Size:#39: Women's 8-8.5 while raised flanges on either

while raised flanges on either side of the insole assist in stabilizing foot movement to prevent over-pronation and supination

The Chaco ZX/1 Classic Sandals are an ideal for the outdoor enthusiast

Item #: COB-BOLSTER-M

Thickness at heel: 7

Polypropene shell cut from 1st to 3rd metatarsals for increased lateral stability

Birkenstock Birko Balance Arch Support Insoles Size:#39: Women's 8-8.5 while raised flanges on eitherOverview The Birkenstock Birko Balance Insoles are a 3 4 length, rigid cork orthotic insole that offer firm support for those with neutral and high arched feet. The cork base provides a combination of firm arch support, low impact metatarsal support, and a deep heel cradle, while the cork itself provides natural shock absorption and foot support. The bottom of the insole is moleskin lined cork while the top is lined with genuine leather. For those