Arc'Teryx Atom SL Hoody Size:L the Sirrus is great for

the Sirrus is great for easy weekends and daily wear around town

the XA COLLIDER GTX equips you for the great outdoors

FlickLock adjustability and a redesigned grip for improved ergonomics

Double Stitched Front Closure

Pockets: two front drop-ins

Arc'Teryx Atom SL Hoody Size:L the Sirrus is great forATOM SL HOODY Warm weather is never a constant, even in summer. Fog rolls in, a sudden thunderstorm blocks the sun, and changes in elevation and levels of exposure can cause temperatures to suddenly shift. But summer conditions seldom require bulky insulation. The Atom SL Hoody is specifically created to hit the zone where insulation is required, but in a measured amount that suits milder conditions. Providing warmth comparable to a lightweight fleece