evo.com | Helly Hansen Shell Jackets > The Helly Hansen Atlas Infinity H2Flow Shell Jacket combines the very best weather protection with a ventilation system that actually works when you're charging hard. HELLY TECH Professional tech handles waterproofing duties, while the unique, innovative H2Flow system uses strategically placed down and PrimaLoft Gold Cross pods to regulate temperature through smart venting. If you're looking for premium performance throughout the most epic days on the mountain, look to the Atlas Infinity H2Flow Jacket. Helly Tech(R) Professional For extremely challenging wet, cold and windy conditions and the toughest physical challenges, Helly Tech(R) Professional will keep you dry, warm and confident. The highly advanced Helly Tech(R) Professional fabrics are engineered to meet the most demanding professional requirements. They push the boundaries of technical fabric engineering and offer waterproof and breathability ratings tailored to the unique performance needs of professionals. All seams are fully taped and welded to our highest specifications for long lasting, professional grade performance. 100% Recycled Polyester 100% Polyester H2FLOW(TM) AIR FORCE Ventilation Technology Life Pocket(TM) Insulated chest pocket with PrimaLoft(R) Gold keeps your phone battery alive longer. | Helly Hansen Atlas Infinity H2Flow Shell Jacket Men's 2026 - X-Large Black | Polyester