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Scarpa SL M4



SKU SCPA-SLM3 Categories , , , ,



Years ago we offered the “SL M3,” a perennial bestseller and versatile backpacking boot.

The SL Activ inherits the one-piece, Italian-leather upper and classic look of the M3, but infuses our latest innovations to the design.

The 37.5® lining dries fast and resists odors – your tent mates will appreciate it! Memory foam surrounds the heel and ankle for comfort.

The Vibram® Biometric midsole uses a dynamic TPU shank to provide underfoot support and dual-density PU for fine-tuned shock absorption. Durable and plush, the SL Activ updates our classic backpacking boot.


  • Upper: Sherpa HS12® leather
  • Lining: Cocona
  • Insole: Activ
  • Midsole: Dual density PU
  • Sole: Vibram® Biometric
  • Last: BD
  • Sizes: 40 – 47, 48, 49, 50 (half-sizes)
  • Weight: 860g; 1lb 14oz (1/2 pair size 42)
  • Color: Bourdeaux
  • Product Code: 61001/351
  • FABRIC: Upper: SHERPA Full Grain Leather

    Lining: 37.5 by COCONA®



    Weight: 860g (½ pair size 42)


    Suola Biometric

    Biometric sole

    1. Dynamic tpu shank
    2. Biomechanical pu midsole
    3. Light pu midsole – Rearfoot cushioning – Forefoot cushioning
    4. Rubber outsole by Vibram® – Anatomical design – Superior stability – Excellent foot rolling – Maximum traction and grip 
    5. Orange, thrust area – Blue, braking area – Yellow, max grip area


    Polypropylene 6,5mm thickness. Compressed felt upper coating.

    Ergonomic padded collar for a perfect ankle wrapping.

    Lacing system that allows a quick lace adjustment for a perfect wrapping of the foot and ankle.

    Flex area that allows the natural movement of the ankle while walking.

    Evaporative Cooling: enhances ability to transfer moisture from the skin by spreading the moisture on the carbon surface, then releasing the moisture through evaporation. The wearer stays drier and cooler.
    UV Protection: increases the UPF of the fabric protecting you from damaging sun exposure.
    Odor Resistance: activated carbon adsorbs a wide range of odors; such as: body odor, fabric odor, smoking odor. The activated carbon is renewed during washing and drying.

    ENJOY THE COMFORT. Thanks to experience and research, SCARPA® is now offering absolute comfort with its ActivFit Technology line. When we say “absolute”, we think of a subjective benefit becoming objective comfort. This new line establishes a new quality standard for better performance, comfort, style and durability. Designed for various outdoor activities: backpacking, trekking on technical terrains, hiking. Through the ActivFit Technology, different lasts, soles and models are developed for men and women.

    The soles are built with materials which are able to absorb negative impact with the ground, reducing stress to the lower limbs and exploiting to the utmost the energy used during the activity.

    Self-moulding padding on ankle area. Made of a special “Memory Foam” material, that, thanks to foot heat, adapts itself to each anatomical shape. The “Memory Foam” material keeps its dynamic memory in terms of last and thickness so it recovers its original shape after every use, avoiding unpleasant pressure.


    Foot Chart



Additional information

Weight 1.72 kg
Size Euro

Euro 42 , Euro 43, Euro 44, Euro 45, Euro 46