The Sherpa Nangpala has the same fill as the Black Diamond Hot Forge Hoody and is also similar in design. It’s a touch lighter and £30 cheaper but has one design flaw and that is the lack of a volume adjuster for the hood. Tighten the drawcords much and the hood drops down too far towards the eyes. Most of the time I haven’t found this a problem, especially when wearing the hood over a hat, but it can restrict your vision. The lower pockets are roomy but cut off by a hipbelt. Otherwise this jacket is warm, comfortable and quite breathable. The large size fits okay over a lightweight fleece. I suspect the medium might be slightly tight.