The boundary between sun and shadow on rope length 13 is reason enough to take the Nano Puff Jacket with you. As a minimal belay jacket for icy rock routes or cold protection during winter storms, it retains warmth and blocks the wind. Its shell made from 100% recycled polyester repels moisture and minimizes friction in the layering system. The slim, hydrophobic, and highly compressible 60 g/m² PrimaLoft Gold Insulation Eco now contains 55% recycled content. It is the most efficient synthetic insulation on the market, boasting an excellent warmth-to-weight ratio and retaining 98% of its insulating power even when wet. The jacket features a fitted cut with narrow, horizontal quilting on the tapered sides. Its soft, moisture-wicking inner wind flap and zipper cover enhance wearing comfort.