SIDAS 3Feet Merino Low Insoles

please select a Size
Order by 9am PT on Dec. 17 for delivery before Dec. 25. Members get free shipping! Learn More (Opens in a new window)
Choose a shipping method
To buy, sign in as an REI Co-op Member or join now.
Members get an estimated $6.50 back on this item.
Join the co-op today to get access to a lifetime of benefits.

Members, get an estimated $6.50 back on this item as a part of your annual .

Designed for warmth, comfort and support of feet with low arches, SIDAS 3Feet Merino Low insoles offer thermoregulation and odor resistance for skiing, 'boarding and other cold-weather pursuits.

  • Features

    • Say goodbye to smelly ski boots, shoes or winter boots, thanks to the odor-resistant properties of merino wool
    • Added synthetic fibers (40%) into the merino (60%) topsheet improve durability
    • A thin sheet of aluminum throughout the insole increases insulation from the elements and reduces discomfort and loss of performance from having cold feet
    • Proprietary 3Feet® technology allows SIDAS to tune the EVA shell to your foot type, providing pressure distribution and added foot support, for an optimal fit
    • Arch-specific cutouts under the midfoot allow your feet to remain active during your whole workout
    • Designed for low arches, EVA shell is lower with more cutouts to ensure great foot mobility, decrease overpronation and support a heavy heel strike
    • Engineered EVA foam layer in the forefeet delivers all-day comfort with superior cushioning for your toes
    • Heel cups help stabilize your feet and ankles, increasing precision and control for all winter activities


    View all SIDAS Insoles
  • Technical Specs

    Best Use


    Downhill Skiing



    Merino/synthetic blend topsheet; EVA shell; aluminum inner-sheet; EVA multidensity foam

    Insole Volume

    Low Volume



  • Size Chart

    U.S. Men's 3-4 5-6 7-8 9-10 11-12 13-14
    EU 35-36 37-38 39-41 42-43 44-45 46-48
    UK 2-3 4-5 6-7 8-9 10-11 12-13

    Sizing Notes

    For insoles, please use shoe size.

  • Reviews
    0 reviews

    Loading Reviews...
  • Questions & Answers

    Loading Questions...