Now in its 4th Generation, the Selk'bag Sleepwear System is offered in a new Lite version that is 30% lower in weight than Selk'bag 3G. Selk'bag 4G Lite is designed as the perfect two-season sleepwear system. Rated to 45 degrees Fahrenheit, the uncommonly comfortable Selk'bag 4G Lite is an excellent solution for those who are uncomfortable in traditional mummy or rectangular sleeping bags. Perfect for a variety of adventures, the Selk'bag is used by outdoor enthusiasts around the world for camping in a tent, under the stars, at the lake, at the beach or even in the cabin. Use the Selk'bag 4G Lite indoors during the Fall and Winter for immaculate comfort, or even in your RV, camper, SUV, or dorm room.