Engineered to excel across multiple activities, the Sirocco positions high performance fabrics to offer comprehensive protection and comfort for the ultimate versatile midlayer.Montane Mens Sirocco Lite Jacket Features: BREATHABLE PROTECTION - Wind resistant and highly breathable insulated core protects and keeps the body warm without overheating during more demanding activities DYNAMIC COMFORT - High stretch fleece panelling ensures uninhibited movement during dynamic activities VERSATILE LAYERING - Designed for layering, lightweight smooth faced textiles cut to a trim fit allow the wearer to easily adapt their layering system to changing needs FEATHERLITE AIR 100% Nylon (recycled) 20D ripstop with mechanical stretch and PFC free DWR coating offers high wind resistance and exceptional breathability Dynamic Insulation 100% Polyester (recycled) with 4 way stretch and excellent thermal performance in both wet and dry conditions THERMO STRETCH LITE 50% Polyester (recycled) 42% Nylon 66, 8% elastane smooth face brushed back fleece with high performance extremely durable 4 way stretch and excellent moisture management Built with the movement patterns of the wearer in mind, the trim fit allows for uninhibited comfort and performance whilst allowing for correct layering for active use  Performance mapping. Materials are positioned to maximise performance where it’s needed  Low profile seams throughout increase durability and comfort Double-sided collar for extra protection Low profile stretch cuffs avoid chaffing Low profiles stretch hem avoid chaffing Lightweight no.3 YKK centre front zip reduces weight and improves layering ability YKK zipped hand pockets Trim fit 270g / 9.5oz Outer: 100% Nylon (recycled) Insulation - core body: 100% Polyester (100% recycled) Lining: 100% Nylon (recycled) Sleeves and Side panels: 50%  Polyester (recycled), 42% Nylon, 8% Elastane