Purchased last December and worn a few times. Worn only a few times, so it's in good condition. I'm selling it because my body shape has changed and it no longer fits. It's Montbell insulation down. It's lightweight, can be folded, and is easy to care for as it's washable. As for how it felt when wearing it, it's very easy to move in and doesn't get stuffy, preventing you from getting too hot. Please see the Montbell website for detailed features. It can be worn as an outer layer in spring and autumn, and as an inner layer in winter. Includes a storage bag and tags. Mammut Columbia The North Face Coleman Millet Outdoor Camping Mountaineering