Enter to Win a YETI Wetlands Bundle Giveaway - Valued at $500!
Enter to Win a YETI Wetlands Bundle Giveaway - Valued at $500!

| Category | U.S. Size | Birkenstock Size |
|---|---|---|
| Women | 4–4½, 5–5½, 6–6½, 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½ | 35, 36, 37, 38, 39, 40, 41, 42, 43 |
| Men | 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½, 13–13½, 14–14½, 15–15½, 16–16½, 17–17½ | 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 |
| Kids | 6–6½, 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½, 13–13½, 1–1½, 2–2½, 3–3½ | 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 |
Sizing:
Add 31 to women's U.S. size and 33 to men's U.S. size to determine Birkenstock size.
Flex Footbed:
Flex the footbed before wearing to help it feel more comfortable sooner.
Step In:
Open all straps and step into the footbed. Leave ¼ inch of space around heels and toes for natural rolling motion.
Adjust Straps:
Close straps comfortably, allowing enough space for freedom of movement.
Take a Walk:
Take a few steps. If toes and heels do not hit the footbed edge, the fit is correct.
Recommendations:
Limit first 5–6 wearings to a few hours to allow the feet and body to adjust to the new support and straps.
Sold Out $66.98 Size Guide

| Category | U.S. Size | Birkenstock Size |
|---|---|---|
| Women | 4–4½, 5–5½, 6–6½, 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½ | 35, 36, 37, 38, 39, 40, 41, 42, 43 |
| Men | 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½, 13–13½, 14–14½, 15–15½, 16–16½, 17–17½ | 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 |
| Kids | 6–6½, 7–7½, 8–8½, 9–9½, 10–10½, 11–11½, 12–12½, 13–13½, 1–1½, 2–2½, 3–3½ | 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34 |
Sizing:
Add 31 to women's U.S. size and 33 to men's U.S. size to determine Birkenstock size.
Flex Footbed:
Flex the footbed before wearing to help it feel more comfortable sooner.
Step In:
Open all straps and step into the footbed. Leave ¼ inch of space around heels and toes for natural rolling motion.
Adjust Straps:
Close straps comfortably, allowing enough space for freedom of movement.
Take a Walk:
Take a few steps. If toes and heels do not hit the footbed edge, the fit is correct.
Recommendations:
Limit first 5–6 wearings to a few hours to allow the feet and body to adjust to the new support and straps.
The BIRKENSTOCK Sydney proves that fashion and functionality can go hand in hand. With its two simple straps, it’s a real hit with women who want both high fashion and comfort. This sandal version has a silky sheen finish. The shiny, gently rounded padded buckles are especially eye-catching. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor®.