![A man with a leg prosthesis (R) by company Otto Bock (Lower Saxony) stands next to two other people at the trade show OT World 2014 in Leipzig, Germany, 12 May 2014. A man with a leg prosthesis (R) by company Otto Bock (Lower Saxony) stands next to two other people at the trade show OT World 2014 in Leipzig, Germany, 12 May 2014.](https://c8.alamy.com/comp/E0FG84/a-man-with-a-leg-prosthesis-c-by-company-otto-bock-lower-saxony-stands-E0FG84.jpg)
A man with a leg prosthesis (R) by company Otto Bock (Lower Saxony) stands next to two other people at the trade show OT World 2014 in Leipzig, Germany, 12 May 2014.
![Amazon.com: Birkenstock Replacement Footbed Kork for Super Birki Black - 46 : Clothing, Shoes & Jewelry Amazon.com: Birkenstock Replacement Footbed Kork for Super Birki Black - 46 : Clothing, Shoes & Jewelry](https://images-na.ssl-images-amazon.com/images/I/91Uxf9oVYiL._AC_UL600_SR600,600_.jpg)
Amazon.com: Birkenstock Replacement Footbed Kork for Super Birki Black - 46 : Clothing, Shoes & Jewelry
![A man with a leg prosthesis (R) by company Otto Bock (Lower Saxony) stands next to two other people at the trade show OT World 2014 in Leipzig, Germany, 12 May 2014. A man with a leg prosthesis (R) by company Otto Bock (Lower Saxony) stands next to two other people at the trade show OT World 2014 in Leipzig, Germany, 12 May 2014.](https://c8.alamy.com/comp/E0FG85/a-man-with-a-leg-prosthesis-r-by-company-otto-bock-lower-saxony-stands-E0FG85.jpg)