Designed as an easy-care durable summer quilt, the versatile synthetic Glow GwI also integrates with all Sea to Summit sleeping bags to boost the warmth of your complete sleep system. When the mercury climbs, treat your Glow like a traditional quilt and allow your feet and arms freedom to cool you down. When the temperature drops, cinch the draw cord tight to create a footbox and secure the quilt to your mat with the simple strap and press-stud system to reduce heat loss.