stio Men’s Fernos Insulated Vest for sale at McU Sports. Lightweight, breathable core warmth with stretch.

Winter cardio of all kinds fuels their warm, breathable and uber-aerobic Fernos Vest. The key to its core-warming performance is 40-gram PeakFill Active Insulation, a highly breathable, quick recovery, spiral filament synthetic fill. Easily compressible into small spaces like a ski pack or running vest, it lofts back promptly when called on for treeline, ridgeline or rest-break warmth. Mechanical stretch and side-seamless construction enhance mobility and reduce layering friction. A single zip chest pocket secures a wallet and keys, while a rear drop tail and reverse coil YKK zipper complete the fast, streamlined aesthetic.

Features
Fabric Details
PeakFill Active Insulation
Microfiber with soft hand and mechanical stretch offers comfort and range of motion
Water-repellent finish resists water and reduces dry time
Construction
Structured self collar provides additional, no-fuss coverage
Hanger loop on center back neck
Zippers
YKK center front zipper with custom Stio zipper puller
Zippered chest pocket
Zippered handwarmer pockets
Other Details
Heat Transfer Stio and Pinecone logos
Heat transfer interior labels for comfort
Made in Vietnam

Fabric
Shell and Lining
Relance Primeflex, 50 Denier Microfiber Mechanical Stretch Plainweave, 100% Polyester, 94g/m2 with a PFAS-Free DWR Finish
Relance, 100% polyester Primeflex microfibers offer improved drape, stretch and wicking properties compared to regular polyester fibers. This fabric features a soft hand, bi-component Primeflex stretch, PFAS free DWR and excellent resiliency and strength.
Insulation
PeakFill Active Insulation, 50% Polyester, 50% Recycled Polyester, 40g/m2
Their 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.

Fit
Regular Fit: A casually shaped design thats not too tight and not too baggy
Center Back Length: 27 1/4 (Size M)
Weight: 10 oz.

Care Instructions
Machine wash cold, gentle setting
Rinse well
Do not bleach
Tumble dry low
Do not iron
Do not dry clean