Laetts™ began with a frustration we all know—cold feet, tight boots, and short days outside. Today, Laetts is a performance sock brand that blends Merino and engineered yarns to help people move better in the cold. Powered by HygroHeat™ (patent pending) and BootGlide™, our socks help you stay warmer, drier, and more comfortable—with less effort.
You may also see our name styled as Läetts™—same brand, same mission.
From Prototype to Patent
From first tests in the snow to full U.S. patent approval, Laetts evolved year by year —blending ceramic science, athlete feedback, and refined design.
Year One
Serious development begins with a focus on FIR integrated thermal yarns.
BootGlide™ emerges
BootGlide concept emerges during adaptive ski testing.
HygroHeat™ finalized
HygroHeat finalized, company incorporated, sock design stablized.
U.S. Patent Allowed
Notice of Allowance received; issue pending. Line expands across ski, snowboard, hiking, and fishing.
Our Founders’ Story
Laetts was born at the intersection of frustration and curiosity.
One founder — Dr. Mark Blaisdell, a lifelong skier — grew tired of wrestling with tight boots at the start and end of every run. That lived problem became BootGlide™, a U.S.-patented knit with mapped low-friction zones at the heel and instep that makes getting in and out of boots smoother, even with cold fingers or tired legs.
The other — Jinglu Huang, a trade journalist with a deep focus on aterial innovation — had been tracking the rise of functional yarns and far-infrared ceramics. Her work produced HygroHeat™, a U.S.-patented approach that recycles body heat (FIR) for warmth without bulk. From that research she developed the broader Merino Thermal System™, Laetts’ three-tier framework for fiber selection, knit architecture, and moisture/heat management—into which BootGlide™ is layered on select models for a truly boot-friendly fit.
Together, the founders turned field frustration and material science into a sock platform that warms, fits, and moves the way cold-weather athletes actually need — and Laetts was born.
Our Commitment
We’re here for people who keep moving—even when conditions don’t. Whether you’re an alpine athlete, a weekend hiker, a senior skier, or someone recovering from foot surgery, Laetts helps you stay warmer, move easier, and enjoy the outdoors longer. Our socks combine natural Merino fibers with performance-engineered features—the result of years of testing, development, and refinement.
