Made with 100% merino wool, it doesn't get stuffy or smelly.

Breaking away from the conventional idea that a cap is just a physical object, the UL Merino X Cap 2026 model is made with 100% merino wool .

This has resulted in improved breathability, odor resistance, and a soft feel against the skin, making the hat even more natural and comfortable to wear .

The "natural comfort" of merino wool

Merino wool is a natural material that contains tiny, invisible layers of air within each fiber.

This structure provides excellent moisture control and breathability , preventing stuffiness even when you sweat and preventing outside air from building up .

It responds to changes in body temperature, providing natural temperature regulation by keeping you cool when it's hot and warm when it's cold .

Furthermore, the keratin protein on the surface of the wool absorbs and neutralizes the sweat and sebum components that cause odor , so it functions as a natural odor-preventing material, preventing odor even after wearing it for days .
You'll stay comfortable even on long hikes or trips.

Knit construction provides airy ventilation

Typical merino wool fabrics have excellent heat retention and moisture control properties, making them very comfortable to wear. The dense weave structure makes it difficult for wind to pass through, and in hot and humid environments like the Japanese summer, heat can easily build up around the head. It's not really suitable as a hat.

The UL Merino X Cap has a unique knitted structure made from merino wool yarn, which creates tiny gaps that allow air to escape like a mesh, creating breathability .

The result is amazing comfort and resistance to stuffiness, even on ridges in the middle of summer or on humid days .

Sustainable materials that are kind to both people and the earth

Merino wool is a renewable natural fiber and is also an earth-friendly , sustainable material that meets the SDGs .

This is a truly modern UL cap that embodies the hiker's values ​​of being "light, comfortable, and natural" and is in line with the cycle of nature .