Birkenstock Boston Soft is a variant of the popular Birkenstock Boston model, which is a clog sandal (with a upper with a closed front). The "Soft" version of this model differs from the standard design in terms of the lining material used. In the standard Boston model, the lining is made of natural suede leather, while the Boston Soft model uses a soft, synthetic material. This material, usually a suede-like or soft felt, provides additional softness and wearing comfort, especially for people with sensitive skin or allergies to animal skin. Birkenstock Boston Soft retains all the advantages of the original model, such as the ergonomic shape of the insole and the characteristic design of the sole, but adds an element of additional comfort and gentleness thanks to the use of a soft lining material. This makes it a popular choice for people looking for comfortable, yet pleasant to the touch footwear.