Take on the mountain with the all-new 509 Evolve Mono Suit Shell—designed for aggressive riders who demand top-tier performance and protection. Featuring the advanced 5Flex Laminate Shell, it delivers 10K/10K waterproof breathability, ergonomic mobility, and reinforced knee zones with built-in pads for impact and heat protection. Built for freedom, durability, and all-day backcountry adventures. 5FLEX stretch shell with a new material offers 10K/10K waterproof breathable , impact and tear resistant protection with flexibility for full range of motion Fully Seam taped with reinforced seams paired with C0 DWR (PFAS-free) elevate water shedding performance keeping you dry and warm all season long YKK® aquaguard zipper Arm pocket with goggle sham and wrist gaiters New 300 gsm Aurora waffle fleece insulation keeps your seat dry and warm allowing all day comfort even in the wettest conditions Ergonomic and anatomical patterning for optimal fit with reinforced knees and lower hem add durability and protection for big hop-over moves Built-in knee pad protect from impact and heat on front and inside of knee while 3/4 leg zips and boot gaiters offer easy on and off Core zippered vent Cathedral hand warmer pockets for extra storage Zippered chest and internal pockets for essentials Internal suspenders Fixed alpine hood Snowmobile tether ring