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Birkenstock Arizona Big Buckle Birki Sandcastle — left

Birkenstock

Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow)

100% authentic Birkenstock — authorized retailer. Free U.S. shipping & 30-day returns on full-price items.

Ships within 1–2 business days

$129.95
The Birkenstock Women's Arizona Big Buckle Birki Sandal in Sandcastle (Narrow Width) is the brand's iconic two-strap silhouette with oversized statement big-buckle hardware on a soft Birko-Flor upper in a warm sandcastle tone. Birko-Flor is Birkenstock's acrylic-polyamide felt synthetic with a smooth leather-like finish. Built on the brand's contoured cork-and-latex anatomical footbed with dual-layer jute lining. Narrow-width construction for slimmer feet.
Fit: EU sizing. The chart groups half sizes into one EU size. If you fall between sizes, Birkenstock recommends the larger size. See the size guide for the EU/US conversion.

Not sure on size? Read our Birkenstock Arizona sizing guide →

Size 36Size guide
Color Sandcastle

EU sizing. Women's US ≈ EU − 31 (EU 38 = US 7–7.5) · Men's US ≈ EU − 33 (EU 43 = US 10–10.5). Full chart

Selected: 36 / Sandcastle

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Details

Fit notes: Birkenstock uses European sizing. EU 36 fits like a U.S. women's 5–5.5; EU 40 like U.S. women's 9–9.5. Narrow width. Both straps adjust at the big buckles.

Authentic Birkenstock, shipped from Feet Heart — authorized Birkenstock retailer. Free U.S. shipping, free returns, fit help at (310) 398-7497.

Key details

  • Color: Sandcastle
  • Sizes: 36–40 EU
  • Material: Birko-Flor, Synthetic
Fit & sizing help

Need help choosing the right size, width, or support level? Call Feet Heart before ordering and a real store team member can help.

(310) 398-7497 · info@feetheart.com

Sizing guides for this brand:

Shipping & returns

Free U.S. shipping. Free 30-day returns on full-price items; items should be unworn and in their original packaging. See the store policy page for full details, including sale items.

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Quick answers
Is the Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow) authentic?
Yes. Feet Heart is an authorized Birkenstock retailer. Every Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow) ships brand-new in its original box, never factory seconds or replicas.
Does the Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow) run true to size?
Birkenstock uses European sizing, and the size chart groups half sizes into one EU size. If you are between sizes, Birkenstock recommends the larger size. Check the width as well as the length.
How can I get fit help for the Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow)?
Call (310) 398-7497 or email info@feetheart.com for personalized fit advice, or try it on in person at our Feet World stores in Culver City and Arcadia, California.
Does the Birkenstock Women's Arizona Big Buckle Birki Sandal — Sandcastle (Narrow) ship free, and can I return it?
Yes. Feet Heart offers free U.S. ground shipping and 30-day returns on full-price items. Sale and clearance items are final sale.

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