The Western Mountaineering MegaLite is cut to suit large folks so they too can enjoy the benefits of the ExtremeLite series. No claustrophobia here with 64 inches of shoulder girth tapering to 39 inches at the feet. 12 ounces of goose down provide a temperature rating of 30°, and continuous baffles allow you to adjust the fill to suit your needs. At only 1 lb 8 oz this is your best friend during a summer bike trip.