Parts & Accessories

45NRTH's Jaztronaut are temperature-blocking insoles designed for cycling footwear. These insoles are constructed with a 2mm panel of non-compressible aerogel insulation laminated inside durable EVA foam. Aerogel is a porous nanotechnology that has been used by NASA to insulate astronaut spacesuits! It has super-high thermal performance and does not require loft to trap heat. Simply put, these insoles say no to cold cleats, and yes to warm feet, even under pedal load.

Moisture management is one of the most important elements of winter cycling and can make or break a ride. On long rides in extreme conditions, having a spare pair of 45NRTH's Wølfgar boot liners means you can ride confidently knowing that you have a dry, fresh pair when you need it. Constructed with a wool/polyester blend for durability, Wølfgar's liner boot wicks moisture away from your skin while still maintaining its insulation value to keep your feet dry and comfortable. Hook-and-loop on the heel secures the liner inside the shell boot. For use with 45NRTH Wølfgar boots only (sold separately)