Eclipser™ Series
Built around a graphene-infused knit that pulls excess heat off the skin, the Eclipser™ Series is KÜHL's answer to mid-summer hikes, scorching trailheads, and humid travel days. Explore the pieces, fabrics, and features that define the series:
Graphene-Infused Cooling. The Eclipser™ fabric is engineered around graphene, one of the most thermally conductive materials known. Body heat moves through the yarn rather than pooling against your skin, so you stay measurably cooler in direct sun. Skin-cooling yarns woven into the knit give the fabric an instant cool-touch feel the second you put it on.
Built for Sun Days. Every piece in the series pairs UPF 50+ sun protection with quick-dry, moisture-wicking performance. Sweat moves outward and evaporates fast. The fabric never goes heavy or clammy on a long climb. If you're spending most of the day exposed, this is the construction recipe you want against your skin.
Warm-Weather Layering. Thumb loops on the longer-sleeve pieces seal the cuff to your hand for sun coverage on bright ridgelines, and the lightweight knit layers cleanly under a midweight shell on cool mornings without adding bulk. Think of the series as the next-to-skin foundation for hot days, and the cool-down layer for shoulder-season starts that turn hot by mid-morning.
Where It Fits Among KÜHL's Series. Where The Law Series lives in heavier, work-anchored fabrics and the ski collection anchors cold-weather technical pieces, the Eclipser™ Series is purpose-built for one job: managing heat in conditions that overwhelm ordinary knits.
Look for signature touches across the series: flatlock-style seams that lay flat against the skin during repeat-motion miles, thumb loops on longer-sleeve styles for ridge-day sun coverage, and the unmistakable cool-touch hand of the Eclipser™ knit that tells you, the moment you put it on, that this fabric is doing something different.
Graphene-infused fabric, UPF 50+ sun protection, and a cool-touch hand, answers to the most common questions about the Eclipser™ Series.
What is the Eclipser™ Series?
Graphene is one of the most thermally conductive materials known, and weaving it into the yarn gives the fabric an active cooling effect. Heat moves through the knit rather than getting trapped against the skin. Combined with skin-cooling yarns, UPF 50+ sun protection, and quick-dry performance, every piece in the series is engineered for days when staying cool is non-negotiable.
What pieces are in the Eclipser™ Series?
Across the styles you'll find UPF 50+ sun protection, moisture-wicking and quick-dry construction, and thumb loops on the longer-sleeve pieces for full sun coverage on the back of the hand. If you need stretch-driven, year-round pieces instead, see our Reactiv Series.
Who is the Eclipser™ Series designed for?
It's a unisex line, built on the same fabric platform across the collection, so the cooling performance is consistent whether you're layering for a long day on the trail, a humid flight, or a stretch of yardwork in full sun. If you consistently overheat in standard performance fabrics, this is the series engineered to help.
What fabrics and construction details define the Eclipser™ Series?
Construction details across the series include UPF 50+ for full-day sun protection, moisture-wicking yarns that push sweat to the surface, quick-dry performance so the fabric doesn't stay heavy after a hard effort, and thumb loops on longer-sleeve pieces to anchor the cuff and shield the back of the hand. The knit itself reads cool to the touch from the first second you pull it on.
How does the Eclipser™ Series compare to KÜHL's other series?
Other KÜHL series solve different problems. Stretch-anchored collections lean into freedom of movement for high-output sessions. Work-anchored collections lean on heavier, more abrasion-resistant fabrics for the jobsite. Cold-weather collections lean on insulation and weather-blocking shells. The Eclipser™ Series doesn't try to do all of that. It does one thing, very well, for the months when the temperature itself is what determines whether you keep moving or have to call the day.
What weather and conditions does the Eclipser™ Series handle best?
Think desert trails in July, exposed ridgelines after the sun comes up, humid travel days in the tropics, and back-to-back summer workdays outside. The graphene-infused fabric, UPF 50+ sun shielding, and quick-dry construction work as a system: dispersing body heat, blocking UV, and shedding sweat fast enough that the fabric stays light no matter how hard you push. In cooler conditions, the series still wears well as a next-to-skin layer under an insulating piece.















