The north faces thermoball hoodie utilises the breakthrough alternative to down for unwavering warmth even when wet thermoball insulation uses clusters of synthetic insulation to trap air in small pockets for tremendous warmth equivalent to 600 fill goose down the thermoball hoodie is lightweight packable and unlike regular down it retains warmth in wet conditions an agile choice for any adventureactivityhiking trekking skiing casualcolour swatchdark greyfasteningzipfill power i