Features performance sock with integrated heating element you don’t notice heating elements of the latest generation which completely incorporate the toe area the natural material mix of merino wool and silk supports the excellent heat effect of the sock optimal moisture transportation ergonomically knitted additional shin protector padding on the exposed parts ring bandages for optimum support on the foot the lithium packs are easy to attach by means of press studs on the legband machine washable at 30 °C compatible with all Lenz lithium packs package content: 1 pair of Lenz heat sock 5.0 toe cap® 1 laundry bag