The SL in Atom SL stands for Superlight, and at only 260g this insulated hoody is certainly that. The Arcteryx Atom SL is a lightly insulated hoody, designed to be worn as a mid layer or as an outer in milder conditions. It offers a lightweight sanctuary to climbers and mountaineers, who don't want to be burdened by heavy loads, yet want basic wind protection and a degree of warmth if adverse conditions set in mid route.
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 for significantly fewer grams, the Atom SL is an efficient midlayer in cool conditions and a great standalone during rest breaks, early morning starts, and while enjoying the view from a freshly bagged peak.
The 40g/m² Coreloft™ Compact insulation is highly compressible, insulates if wet, and delivers its superior performance for very little weight. All the Atom SL’s fabrics are selected to manage moisture and provide comfort while on the move. Sleeves are lined with a comfortable mesh, and lightweight fleece side panels help provide thermal performance and ventilation. Articulated sleeves and gusseted underarms extend freedom of movement.
The Atom SL Hoody is perfect for the multi pitch climber or fast moving mountaineer, as it takes up little space in the pack yet delivers far more than its meagre grams suggest when the wind picks up and temperatures drop. It is also great for hill walkers as a pull out layer for lunch stops or summit photos.