The perfect 3-season jacket, both on and off the water, the lightweight Fall Run Hoody packs a heavyweight warmth-to-mass ratio for less bulk under bibs and waders. Worn alone or paired with a waterproof, breathable shell, the Primaloft insulation is treated for water repellency to keep you warm even when damp from rain or heavy activity. Extremely compressible, it's the ideal layer for stowing in your daypack or sling pack.