Birkenstock Women's Zermatt Shearling Wool Felt

How to measure your foot length

• Stand with your heel against a wall and put a measuring tape on the floor under your foot.
• Read the measured foot length in millimeters to the tip of your longest toe.
• If you are between two sizes, choose the next higher size, because feet are minimally greater under load.

Birkenstock products are offered in European sizes. Please reference the size and width conversion charts below. A quick estimate is to add 31 to your U.S. women’s size and 33 to your U.S. men’s size. (This guidance is consistent with Birkenstock’s own fitting guide.) :contentReference[oaicite:0]{index=0}

Your feet should be able to move freely without your toes touching the edge of the footbed.

Size conversion chart

Adjusting

Before trying them on, put one hand under the toe and one under the heel, then flex the footbed a few times. This will initiate the break‑in period and help your new sandals feel comfortable sooner.

Open all straps and step into the footbed. Close the straps comfortably, leaving enough space for natural movement. Exhale and enjoy.

Wearing

For the first five or six times you wear your new footwear, limit wear time to a few hours. This allows your feet and body to gradually adjust to the contoured arch support, straps, and buckles.