Birkenstock Innersole Birko Contact Sport Blue size-y1 Narrow fit

Narrow fit

Details: two individually adjustable metal pin buckles

Full length stabilizer and VIBRAM® Evo sole for sure-footeded traction

cow leather with a water-repellent treatment

The Cotton Sole sock boasts excellent quality and an outstanding fit

Birkenstock Innersole Birko Contact Sport Blue size-y1 Narrow fitBirko Contact Sport Innersole in Blue The Birko Contact Sport Blue offers full length arch support and is anatomically shaped and cushioned to help reduce stress on the knees, spine and hips. The semi rigid EVA shell is flexible and waterproof. The latex microfiber top aids in shock absorption and moisture management. Provides moderate balanced support for all arch types. Best worn with athletic shoes and work shoes. Can be trimmed to fit.