Ultralight

Ultralight — High Warmth-to-Weight Performance

Built on the Laetts Merino Thermal System™, Ultralight socks are engineered to deliver exceptional warmth at the lowest possible weight. Weighing as little as 60–80 g per pair, they rely on patented HygroHeat™ to reinforce thermal efficiency without added bulk—making them a top choice for skiers and snowboarders who demand warmth, speed, and precision.

Designed for high-output activity, Ultralight focuses on maximum thermal return at minimal mass, preserving sharp boot feel, fast edge response, and consistent warmth through repeated runs. Select styles integrate BootGlide™ friction-reducing zones to support quick, low-effort boot transitions without compromising fit or control.

Warmth where it counts. Weight where it matters least.