The black Arizona slipper has a black shock absorbing non-slip sole. This Birkenstock is therefore ideal for professional use, standing jobs and on slippery surfaces. The shock absorbing effect of the sole prevents foot and back problems. The two black straps are adjustable and therefore fit the foot perfectly. These slippers are just as tight as the models with the strap behind the heel.

Normally a narrow foot bed is wide enough.
Do you like to wear socks in your slippers, do you have a high instep or full feet? Then the wide foot bed is recommended.
Keep in mind that Birkenstocks are very large. Compared to other shoe brands, one shoe size smaller will probably fit best.