The Dynafit Radical Down RDS Hooded Jacket is a men's down jacket built for ski touring, where a down layer earns its place at the top of the climb and on the way back down rather than during the effort. Down gives more warmth per gram than any synthetic, which is why it stays in the pack on cold days.

• RDS certified down: the Responsible Down Standard traces the fill through the supply chain, with no live plucking and no force feeding.
• Best warmth per gram: down is still the lightest way to carry a given amount of warmth, which is the reason to choose it over synthetic.
• Radical is the ski touring line: Dynafit's touring family, so the cut allows a harness and a pack.
• Hooded: the hood is where a jacket gains warmth most cheaply in weight terms.
• Packs small: down compresses further than synthetic insulation, which matters in a touring pack.
• Keep it dry: down loses loft when it gets wet, so it belongs under a shell in falling snow or rain.
• Smoke Blue colourway, men's fit
• Men's fit