Montbell is bringing ultralight hiking fleeces into its Winter 2026 lineup with the 'CLIMAAIR Light Long Sleeve T,' a warm midlayer designed to add insulation without adding much pack weight. Both the men's and women's versions are now available at Montbell UK.
At 110g, the fleece is designed for hikers who want a thin layer that traps warm air while letting heat and moisture escape. Its long polyester fibers and open knit structure also help it stay breathable, quick-drying and flexible enough for active use.
At £45, the CLIMAAIR Light makes lightweight layering more accessible for hikers who want technical insulation without a bulky winter fleece. Paired with a shell, it fits into the kind of adjustable system outdoor brands use to make changing conditions easier to manage.
Image Credit: Montbell
What Makes This Trend Stand Out
- Ultralight Layering
- Minimal-weight insulation is reshaping outdoor apparel by making technical warmth more packable, affordable, and suitable for fast-moving hikers.
- Breathable Thermal Knits
- Open-knit fleece structures create room for performance fabrics that balance heat retention, moisture release, and comfort during high-output activity.
- Accessible Technical Gear
- Lower-priced performance layers broaden the market for specialized outdoor equipment by appealing to casual hikers and value-conscious enthusiasts.
Sectors Adopting This
- Outdoor Apparel
- Technical midlayers with lighter weights and lower price points expand product pathways for brands competing on comfort, mobility, and pack efficiency.
- Performance Textiles
- Advanced polyester constructions support fabric innovation centered on quick drying, breathability, and flexible insulation for changing weather conditions.
- Hiking Gear Retail
- Affordable modular clothing systems strengthen retail opportunities around adaptable kits that help consumers manage warmth across varied outdoor environments.
