Birkenstock Boston Narrow Fit in Dark tea combines the brand's iconic anatomically shaped cork‑latex footbed with a warm lamb‑fur lining for cold weather wear. Product image is indicative. Key attributes: Brown | Dark tea | Suede leather | Temperature‑regulating lining | Breathable lining | Anatomical cork‑latex footbed | Lightweight cushioning EVA outsole | Adjustable strap with metal buckle | Slip‑on clog with open heel | Fur‑covered footbed | Rounded toe | Ergonomic shape | Suede upper | Visible lamb fur trim | Copper‑tone metal buckle | Dimensions & fit: Narrow Fit | True to size — choose your usual EU size; note lining may feel snug at first and will soften with wear. | Composition & care: Upper: Suede leather | Lining and footbed cover: Natural lamb fur | Footbed core: Cork and latex | Outsole: EVA | Avoid immersion in water. Brush suede regularly with a soft suede brush; for small marks, brush dry to restore the nap. After use, air dry the lamb fur away from direct heat and, if needed, brush gently with a soft brush to maintain loft. Clean the EVA outsole with a lightly damp sponge and mild soapy water.