SKU: SS23617 Weighs: 983g R-Value: 1.3 Season Rating: Summer Mat Size: Double Mat Type: Airbeds The Ultra 1R is a warm mat that utilises lightweight materials, a pad perfect for any summer adventure. Exped says:  Ultra 1R Duo LW Sleeping Mat is perfect for human-powered adventures such as trekking, long-distan… Ultra 1R Duo LW Sleeping Mat