Gear database

Smartwool

Smartwool Intraknit Sensor Base Layer

The most wash-durable electrode construction we tested, with a removable module that lets the garment outlive the electronics.

Base LayersTextile ECGMerinoRemovable module
Editor score
8.2
out of 10

Quoted specifications

  • 01Silver-coated knit electrodes
  • 02Removable magnetic sensor module
  • 03Merino-rich body fabric
  • 04Tested 50+ home launderings with 12% signal decline
  • 05On-device storage for offline sessions

Best for

Cold-weather training and long-distance hiking