Size is US 6.5, EU 40. ● Textile lining is lightweight, breathable, and provides comfort. ● Single-layer PU sole provides lightness, cushioning, and flexibility. ● Uppers are made of smooth, in-house-produced nubuck leather. ● The FLUIDFORM (ECCO's core comfort technology, reflecting the ergonomic curves of the foot for an exquisite fit) sole combined with high-quality premium leather produced in our own tanneries creates an unparalleled comfortable fit.