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Stio Men's Fernos Insulated Vest

Stio Men's Fernos Insulated Vest
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Choose a vest that keeps the pace for on winter runs, up the skintrack or cruising on Nordic loops. Breathable and lightweight, yet keeps you warm.

Winter runs, fitness skins or Nordic loops are all part of the game for our breathable, aerobic vest. 40-gram PeakFill Active—a highly breathable, quick recovery, spiral filament synthetic fill—supplies core-warming performance. Easily stuffed into spaces like a ski pack, it lofts back quickly when called on for rest-break warmth. Mechanical stretch and side-seamless construction enhance mobility and reduce friction.

Shell and Lining

Relance™ Primeflex, 50 Denier Microfiber Mechanical Stretch Plainweave, 100% Polyester, 85g/m2 with 80/20 DWR finish

Relance™ Primeflex 100% polyester microfiber offers better drape and wicking than that of normal polyester fibers. This fabric features a soft hand, comfortable stretch, wind resistance, and excellent resiliency and strength.


PeakFill™ Active Insulation, 57% Polyester, 43% Recycled Polyester, 40g/m2

Our PeakFill Active proprietary insulation balances warmth and breathability to maintain lasting athletic comfort across the entire conditional range. Designed to keep core temps regulated, the synthetic fiber fill draws on a spiral filament structure to enable greater stretch, faster recovery and quicker dry times than traditional lofted insulation whether rolling slow at valley level or working hard up in the alpine.