45NRTH Jaztronaut
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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.

Part Numbers

Option UPC MPN Store SKU
38/39 708752085183 SH4513 68217
40/41 708752085190 SH4514 68218
42/43 708752085206 SH4515 68219
44/45 708752085213 SH4516 68220
46/47 708752085220 SH4517 68221
48/49/50 708752085237 SH4518 29268


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