The Beta SL Jacket, is Arcteryx's lightest Beta, which has been engineered to meet the demands of the mountains. This highly versatile jacket offers full waterproof, windproof, and breathable protection while maintaining a lightweight, packable design. Its advanced Gore-Tex ePE membrane is both light and strong and free from PFCs, whilst the C-Knit backer technology enhances both comfort and breathability. Features of the Beta SL Jacket include a helmet-compatible StormHood which ensures protection without limiting vision, pit zippers which provide ventilation, and a RECCO reflector to assist in search and rescue situations.