Review: Arksen Clao Sweatshirt

For a decent mid I’m after warmth-to-weight that feels meaningful. Breathability and layering compatibility under a shell without bunching or bulk. Durability which means that it doesn’t fall apart after a season of “one sweater to rule them all” use which, let’s face it, is a habit.

I took the Clao into Yr Wydffa during a proper Welsh winter snap and also up into the High Atlas in spring for some e-MTB. It breathed well enough that I didn’t need to strip layers immediately. The structured insulation seemed to hold warmth without sealing everything in. Higher up, wind picked up across exposed sections toward Mynydd Moel and that’s when it impressed me most: no cold spots across the torso. Even when wind chill bit through the shell seams, the Clao maintained a consistent thermal feel.

TBH, £250 for a sweatshirt might sound a bit unhinged, until you stop calling it a sweatshirt. It’s a “buy once, buy right” move. If you treat it as a technical mid-layer you can wear constantly,  in the city, on trips, under shells, it starts to justify itself. The real value is in the fabric performance and versatility. You’re essentially paying to avoid owning three lesser versions of the same idea.

“The Clao is a technical crewneck sweatshirt built from Polartec® Power Air™ –  a structured insulation knit designed to trap warmth efficiently while reducing fibre shedding versus conventional fleece.” In plain English though: it’s a mid-layer pretending to be a sweatshirt, with a cleaner silhouette than most outdoor kit and more brains than most casual tops.

A minimalist, non-cosy, high-function thermal crew that quietly outperforms most mid-layers but at a price that will challenge your preconceptions of brand and product.