Arc'teryx Squamish Hoody is proof of how much difference an ultralight layer can make. This windproof and breathable jacket is made for active days when the weather changes quickly, and it works equally well over a t-shirt as it does with a mid-layer. The Tyono 30D fabric delivers an impressive combination of wind resistance, durability and freedom of movement relative to its low weight, making the jacket ideal for everything from climbing to fast mountain days.

When the wind picks up, the Squamish Hoody shields effectively and keeps the cold at bay. When the sun comes out, it packs into its own chest pocket in seconds and can be clipped to a harness or pack using the reinforced hem attachment. The jacket is treated with a PFAS-free FC0 DWR finish that repels light moisture, and the articulated design provides natural freedom of movement during activity.

The helmet-compatible StormHood offers reliable protection without obstructing your vision, and elastic cuffs keep the sleeves in place. The chest pocket is easily accessible even when wearing a climbing harness or rucksack, and doubles as a stuff pocket for quick packing when the jacket is not in use.

The Arc'teryx Squamish Hoody is made to be the layer you never leave at home – always ready when the wind picks up, and just as easy to stow away when it is not needed.