Hooded down blouson made of a light stretch nylon that, with a special weaving technique, automatically creates, from the loom, the compartments where the feather padding is then injected. The seams are thus avoided, with the advantage of substantially increasing the seal of the feathers inside the chambers. The finished garment is padded via direct injection with the finest feathers, specifically treated to resist garment dyeing. The fabric and accessories on the garment, including the zipper, are engineered to respond to the dyeing process. The addition of a special agent to the dye recipe makes the garment anti-drop.