Birkenstock Boston, a true classic that can be worn all year round without any problems. The sole guarantees a comfortable and secure footing thanks to its two components, a polyurethane (PU) midsole and a non-slip, dynamic and lightweight polyurethane (TPU) outsole. In addition, the outsole can also be repaired. This makes this clog perfect for everyday wear in the restaurant sector. The upper is made of high-quality and particularly soft natural leather, coated with polyurethane (PU). Boston Pro is certified according to the EN ISO 20347:2022 guidelines. Narrow fit. Color: Dark brown (Soft Java).