The Salewa Ortholite Footbed for trekking is a replacement moulded insole in single density OrthoLite foam. Its job is cushioning and airflow, and OrthoLite's characteristic is that it keeps its height over the life of the insole rather than flattening out after a season.

• Keeps its cushioning height: OrthoLite foam resists the packing down that turns a stock insole into a flat sheet.
• Open cell structure: air moves through the foam, which manages moisture inside a warm boot.
• Machine washable: it can be washed rather than replaced when it starts to smell.
• Recycled rubber content: the polyurethane foam includes recycled rubber.
• Cushioning, not arch support: this is a flat comfort insole, so if you need arch shaping the Multi Fit Footbed is the Salewa product for that.
• UK 3 to 13: whole sizes only.
• Cushioning