The Beta SL Jacket – our lightest Beta – is built for mountain realities. Highly versatile, it’s carefully designed to deliver complete waterproof, windproof, breathable protection without sacrificing lightweight packability. Its innovative GORE-TEX ePE membrane is light, strong, and PFC free. C-KNIT backer technology improves comfort and breathability. The helmet-compatible StormHood protects without compromising vision, pit zippers ventilate, and a RECCO reflector can aid in search situations. GORE C-KNIT™ backer technology is light, soft and comfortable PFC-free GORE-TEX® ePE membrane provides breathable weather protection and is laminated to a bio-based nylon face made with fibres derived from plants Made with an innovative GORE-TEX® fabric that provides a long product life, is PFC free, and has a reduced carbon footprint Contrast: 40dx70d 3L GORE-TEX® ePE, recycled nylon plain weave, FC0 DWR - 100% Nylon with ePE and PU Membrane, 100% Nylon Backing Body: 40dx70d 3L GORE-TEX® ePE with C-KNIT™ backer, plain weave recycled nylon, FC0 DWR - 100% Nylon with ePE and PU Membrane