For a more customised fit, the insoles are available in two thicknesses: 5mm (slim fit) and 3mm (regular fit). Both feature an anatomical design and provide extra support to the arch and centre of the foot.DOUBLE X-DIAL SLW3 CLOSURE SYSTEM The double SLW3 developed by X-Dial is completely unique with a double zone and highly precise closure with micrometric fit adjustment. The compact and lightweight mechanism is intuitive and intelligent, allowing fit adjustments with a simple action.Type: Cycling shoesPower Transfer: 7/8Lightweight: 8/8Breathability: 6/8Soil rigidity index: 12/15Weight: 264 gramsSize: 40Colour: White/blackPU upper skeletonBreathable microfibre liningDouble X-Dial SLW3PowerShape Carbon 15 sole3-Sciws Delta Pedal System (Look) compatible Speedplay compatible