Strategically placed at the chest and back, the Coreloft™ insulation is efficient, light, and compressible. Stretch fleece side panels ventilate and an uninsulated hood adds coverage and buttons out of the way when not in use.

[Atom Series: Synthetic insulated midlayer | SL: Ultralight]. The lightest Arc’teryx Atom. Coreloft insulation strategically placed on the chest and back not only provides efficient insulation and is lightweight, but also compresses for storage.

The Arc’teryx Women’s Atom SL Hoody Jacket in size small and dark purple color (I think it was called Astral) is a very versatile light weight jacket. Synthetic insulation in the body and nylon material block wind very well. Stretch panel sides are great for ventilation. It can function as a light weight outer layer, good for higher output activities like hiking and cross country skiing or a mid-layer in place of a fleece under a waterproof or ski jacket. The hood has a draw cord to tighten so it doesn’t block sight lines and the bottom back of the hem also had a synch but I’ve never needed to use it. I love this jacket and the only reason I’m seeking it is because it doesn’t fit anymore. It’s been on some adventures but has been very well cared for, no holes or snags.

Doesn’t look like it’s been worn much maybe one or twice but there is some threading coming undone on the inside right-hand side area near the waist. and a couple marks/dots on the back right-hand side of the hoodie. other than that no flaws

Versatile synthetic insulated mid layers with a high degree of weather resistance. Versatile high performance designs for diverse activities and conditions.

The color is a shade of purple. Length: 24.5″.

Arc’teryx Atom SL Hoody – Men’s Medium – Euphoria Brand new, never worn, and in perfect condition.

Arc’teryx Atom SL Hoody.

The Arc’teryx Women’s ATOM SL HOODY Jacket in Light Blue, size Small, is a versatile mid-length insulated jacket perfect for outdoor activities in winter, fall, and spring. Made with durable nylon outer shell material and a softshell fabric type, this jacket features a full zip closure, long sleeves, and a hood for added warmth. The lightweight design and regular fit make it comfortable for all-day wear, while the machine washable care instructions ensure easy maintenance. Ideal for women looking for a stylish and functional jacket for colder weather.