• Laetts ultralight OTC men’s ski socks with Merino wool, patent-allowed HygroHeat™ thermal technology, and BootGlide™ easy boot entry system, angled product display.
  • Close-up knit detail of Laetts ultralight OTC men’s ski socks showing Merino wool, HygroHeat™ thermal yarn, and BootGlide™ low-friction overlay
  • Flat lay of Laetts ultralight over-the-calf men’s ski socks in navy with turquoise and gray accents, featuring patented BootGlide™ low-friction zones, HygroHeat™ thermal technology, and Merino wool construction.
  • Side-by-side product view of Laetts ultralight over-the-calf men’s ski socks in black with gray stripes and orange BootGlide™ zone, designed with patented BootGlide™ low-friction panels, HygroHeat™ warmth technology, and Merino wool for lightweight thermal performance.
  • Close-up detail of Laetts ultralight men’s ski sock, showing the orange BootGlide™ low-friction zone, contrasting with black and gray knit sections. The texture highlights the Merino wool blend and patented HygroHeat™ thermal knitting.
  • Flat lay of Laetts ultralight OTC men’s ski socks featuring patented BootGlide™ zones in orange, gray cushioning at the heel and toe, and navy body with horizontal gray stripes near the cuff. Includes HygroHeat™ warmth technology and a Merino wool blend.
  • Side-by-side product view of Laetts women’s Ultralight Ski socks in OTC length, featuring patented BootGlide™ zones in violet, HygroHeat™ thermal technology, and a Merino wool blend. The socks are brown with gray stripes near the cuff, violet BootGlide™ panels around the shin and heel area, and gray heel/toe cushioning.
  • Close-up detail of Laetts women’s Ultralight Ski BootGlide™ sock showing the knit texture and BootGlide™ low-friction zone in violet. The image highlights the brown Merino wool base fabric, gray reinforced areas, and patented construction designed for smooth boot entry and warmth from HygroHeat™ technology.
  • Flat lay of Laetts women’s Ultralight Ski BootGlide™ socks in brown with gray stripes and violet BootGlide™ low-friction zones. The socks are over-the-calf (OTC) length and feature patented BootGlide™ and HygroHeat™ technologies with Merino wool for warmth, comfort, and easy boot entry.

Ultralight Snow BootGlide™ — Light Cushion

Ultralight Snow BootGlide™ — Light Cushion

Merino Thermal Socks — Warmth Without Bulk

$39.95
$39.95
SAVE Sold out

Patented HygroHeat™

BootGlide™

Extra Fine Merino Wool

30 Day Return

Free-shipping on Orders $89.00+

Empowered by the Laetts Merino Thermal System™, this Ultralight Snow BootGlide™ sock with Light Cushion construction pairs a fine-gauge Merino blend with patented HygroHeat™ for moisture-responsive warmth without bulk. A precision-oriented performance fit stays thin through the boot for responsive control and clean snow feel, while light underfoot terry adds subtle cushioning for comfort without compromising speed.

Designed primarily for ski use, patented BootGlide™ low-friction zones make boot entry and removal smoother and lower-effort—ideal for skiers who value quick transitions alongside lightweight performance. The Merino blend wicks moisture, resists odor, and adapts across changing activity levels to keep feet comfortable throughout long days in cold conditions.

Learn more: Merino Thermal System

Attributes

Shaft Height:    Over-the-Calf

Weight:            Light

Cushion：        Light-cushion

Form：             Anatomic

Style：             Sporty

Item Number：L202411∽12

Fibre Content

31% Acrylic, 26% Wool, 26% Nylon, 11% Viscose, 4% Polyester, 2% Spandex

Care

Machine wash in warm water on gentle cycle, inside out. Do not bleach. Tumble dry low or hang dry. Do not dry clean. Do not iron.

Laetts ultralight OTC men’s ski socks with Merino wool, patent-allowed HygroHeat™ thermal technology, and BootGlide™ easy boot entry system, angled product display.

Ultralight Snow BootGlide™ — Light Cushion

$39.95
$39.95
SAVE Sold out
View full details

MERINO THERMAL SYSTEM™

HYGROGHEAT™

BOOTGLIDE™

Warm & Light

Temperature-Regulating

Moisture-Wicking

Odor-Free Comfort

MERINO THERMAL SYSTEM™

HYGROGHEAT™

BOOTGLIDE™

Warm & Light

Temperature-Regulating

Moisture-Wicking

Odor-Free Comfort

MERINO THERMAL SYSTEM™

HYGROGHEAT™

BOOTGLIDE™

Warm & Light

Temperature-Regulating

Moisture-Wicking

Odor-Free Comfort

MERINO THERMAL SYSTEM™

HYGROGHEAT™

BOOTGLIDE™

Warm & Light

Temperature-Regulating

Moisture-Wicking

Odor-Free Comfort

Functions

  • HygroHeat™ Thermal Core

    Patented ceramic system reflects body heat using far-infrared (FIR) technology for self-sustaining warmth — without batteries or bulk.

  • BootGlide™ Easy Fit

    Patented friction-tuned design reduces resistance during boot entry and removal — ideal for cold fingers and tired legs.

  • Up to 8.8°C Warmer

    Lab-tested to retain significantly more warmth than standard Merino socks — for longer comfort in the cold.

  • Ultralight Thermal Build

    Designed to deliver high warmth-to-weight ratio — stays light in performance boots without sacrificing heat.

  • Moisture-Regulating

    Engineered fibers actively manage sweat and moisture to keep feet dry and comfortable—even under sustained pressure.

  • Eco-Friendly Merino Blend

    Made with sustainably sourced Merino wool and performance yarns — soft on skin, lighter on the planet.

  • Adaptive Fit Support

    Comfortable for skiers with reduced strength, post-surgery needs, or limited dexterity — boot entry takes less effort.

  • Natural Odor Control

    Merino’s natural antimicrobial properties help reduce odor — for fresher feet on long days.

    Advanced Technology for Unmatched Warmth & Comfort

    How HygroHeat™ Works

    •  Patented Thermal System
      HygroHeat™ is Laetts’ patented thermal technology that generates warmth through ceramic particles embedded directly into the sock structure.

    • FIR-Emitting Ceramics & Reflective Design
      These particles emit far-infrared rays (FIR) to support circulation and thermal
      retention during activity. The visible white line on the sock is woven with
      reflective yarns that return body heat inward—no batteries, no external power.

    • Performance Warmth, Up to 8.8°C Warmer
      Lab-tested to retain heat better than leading ski sock brands, Laetts’
      HygroHeat™ keeps feet up to 8.8°C warmer.

    • Lightweight Comfort Without Bulk
      All the warmth—without heavy layers. Designed to maintain comfort across changing activity levels while preserving fit precision and mobility.

    Learn more: HygroHeat Technology

    Engineered Comfort from First Step In to Final Step Out

    How BootGlide™ Works

    • Patented Friction-Tuned Zones
      BootGlide™ is Laetts’ patented low-friction knit system engineered to reduce grabbing and bunching inside snow boots. It’s built to make getting in and out smoother—without tugging or twisting.

    • Slide In, Glide Out
      Key zones at the heel and instep are engineered with glide-enhancing fibers, making it easier to step into boots and remove them at the end of the day.

    • More Comfort, Less Strain
      Whether you're dealing with cold hands, stiff gear, or tired legs, BootGlide™
      helps you move with ease. It's especially supportive for seniors, post-surgery
      recovery, or anyone looking for added accessibility.

    • Designed for the Beginning and End of Every Outing
      From your first step in to your last step out—BootGlide™ takes the struggle out
      of winter boots, so you can focus on the adventure.

    Learn more: BootGlide Technology