The Enlightened Equipment Convert 50 850 is the lightweight summer version of EE's Convert line, built around a full-length zipper that lets it switch between an open quilt, a blanket, and a fully closed sleeping bag. That versatility suits trips where conditions swing from a warm evening to a cooler morning when closing up the footbox and sides helps.
Rated by the manufacturer to 50°F (10°C), it sits in the one-season summer category. The 208 g of 850-fill-power duck down is held in a 10D nylon ripstop shell with a DWR finish, for a total weight of 434 g in the Regular size (up to 183 cm user height). The fully adjustable, vented footbox helps dump excess heat on warmer nights, when overheating is more of a concern than cold.
The down comes from an RDS-certified source and the quilt is made in the USA; a stuff sack and storage sack are included. It suits summer thru-hikes and bikepacking where low weight matters and using the quilt as a camp blanket adds practical value.