Description Built around Montane’s new PETRICHOR TECHNOLOGY™, the lightweight, durable 3-layer fabric has a 20,000mm hydrostatic head with a breathability rating of RET <5, created with no intentional use of PFAS. A 100% recycled nylon face fabric sits over a windproof, non-porous hydrophilic membrane, which physically transports moisture away from the body, through the microclimate inside the jacket and into the air outside. This is ideal for dynamic outdoor missions with high-intensity output, because the harder you work, the harder this membrane works to deliver comfort, and conserve energy in the mountains. YKK Aquaguard Front Zip Weather-proofed zip for a versatile fit PETRICHOR TECHNOLOGY™ 3-LAYER Waterproof (20,000mm Hydrostatic Head) and exceptionally breathable (<5 Fluorocarbon-Free DWR Coating on face fabric applied to bead and shed moisture Materials Shell Face: 100% nylon (recycled), Shell backer: 100% nylon PETRICHOR TECHNOLOGY™ 3L. High-Performance Breathability. Montane’s PETRICHOR 3-layer technology delivers waterproof (20,000mm Hydrostatic Head), exceptionally breathable performance to the Cetus Lite Jacket. It scores a RET rating of less than 5, which means it is ideally suited for high-output activities in the outdoors, where it will remain breathable to keep you dry inside and out. This is achieved through the windproof, non-porous hydrophilic membrane that transports water vapour and moisture away from the body, an effect that increases in strength as you work harder. The 3-layer construction sandwiches the waterproof membrane between a 100% recycled, 21D Ripstop nylon face fabric and the lining, for improved durability and next-to-skin comfort.