SIZING:
With Birkenstock, a "N Narrow" width is a standard women's B width. An "R Regular" width is a standard men's D width.
Birkenstocks are sized with the European sizing system. The conversions are:
- 35 = women's 4-4.5
- 36 = women's 5-5.5
- 37 = women's 6-6.5
- 38 = women's 7-7.5
- 39 = women's 8-8.5, men's 6-6.5
- 40 = women's 9-9.5, men's 7-7.5
- 41 = women's 10-10.5, men's 8-8.5
- 42 = women's 11-11.5, men's 9-9.5
- 43 = men's 10-10.5
- 44 = men's 11-11.5
- 45 = men's 12-12.5
- 46 = men's 13-14