Arc’Teryx Atom LY Hoodie (2013)

The Arc’Teryx Atom LY Hoodie is a comfortable, very light jacket that is warm and well- (if not exceptionally well-) featured, and cut to fit for maximum movement with stretchy, microfleece-lined sides. Arc’teryx puts a lot of emphasis on fit; if the clothing suits your body shape, it will fit you like it was made for you – helped by subtle stretch and contoured seams – and this is no exception, for better or worse. The hood fitted well, but there’s no adjustment, and the wafty sides could fill with cold air in a head wind. Overall the roominess is ideal: enough to throw over your waterproof, but not so much that the jacket is baggy when used as an outer layer. The three pockets (two zipped handwarmers and an inside pocket) won't take an OS map. The Arc’Teryx Atom LY Hoodie is short with a scooped rear, which – while not as long as some – will appeal to anyone looking to avoid draughts when bending over. The ‘Luminara’ outer fabric is crepe-like, quiet and breathable, and better at repelling water than its appearance suggests. It’s also deceptively durable, like a super-soft Kevlar. Insulation is Coreloft, which squashes down well, but there’s no stuffsack. Styling is typically understated, which will appeal to some.

Weight 374g (size S)
Outer fabric Luminara stretch nylon ripstop, Polartec PowerStretch Hard Face
Insulation 60gsm Coreloft (100% polyester)
Stuffsack/packable? No
Adjustable hood? No
Men’s sizes S-XXL
Women’s sizes XS-XL



The Arc’Teryx Atom LY Hoodie is probably the most comfy insulated jacket in our test, but more features – an adjustable hood or stuffsack, for instance – would justify its price.

Review by Simon Ingram
First published in Trail magazine March 2013