Birkenstock Birko Balance Arch Support Natural | Insoles – Footwear etc.
Birkenstock unisex arch support insoles Birko Contact Sport | eBay
Boston fit improvement. I have quite narrow feet and these inserts, though not ideal (minor sticky separation sound when you lift off while walking) have made them functional to use. They otherwise
Birkenstock Sport Narrow Insole (Unisex) - Blue – The Heel Shoe Fitters
New w/o Tag Birkenstock Professional Replacement Footbed Black Reg Select Size | eBay
BirkoContact Sport Microfiber Blue | BIRKENSTOCK
Birkenstock Professional Unisex Profi Birki Slip Resistant Work Shoe, Black, 37 | eBay
3/4 Length Insole Birko-Tex Textile Brown | BIRKENSTOCK