The secret to CompressLite is in the ClimaPlus fill. Ounce for ounce, its insulating properties are comparable to natural down � which means that this clever packable jacket will help you stay warm when conditions cool. Lightweight, super-compressible and ready for action straight from its own stow sack, it�s a smart choice for instant warmth. Windproof Water-resistant Packable Lightweight Wash&Wear Stay warm and cozy with the lightweight and packable CompressLite jacket. Made with innovative ClimaPlus fill, this jacket is as insulating as natural down but without the bulk. It is also windproof, water-resistant, and easily foldable into its own stow sack. With its convenient and practical features, this jacket is your go-to choice for instant warmth in any weather.