Patagonia created the Womens Nano Puff Hoody as a versatile insulator suitable for hiking, climbing, and general outdoor use. The outer features durable and windproof recycled ripstop polyester with a PFC-free water-repellent finish to increase protection. The PrimaLoft Gold Eco synthetic insulation filling is lightweight, compressible, and can keep you warm even if it gets wet. Practical features include an insulated under-helmet hood, zipped hand pockets, and an internal chest pocket. You can stow the hoody into the inner pocket for easy packing. The Nano Puff has acomfortable regular fit.