Named after Archaeopteryx lithographica, the first reptile to develop the feather for flight, the ethos of Arc’teryx is all about evolving ideas through innovation. Capable of combatting anything the natural world can bring, the Beta Jacket is crafted with GORE-TEX® material and GORE C-KNIT™ backing for water and wind immunity. The trim fit allows for light layers underneath without impacting your freedom of movement, so you can traverse the outdoor world without restriction.