Perfect for mid season or as an additional layer, the Denver stable quilt has a 520 denier breathable outer. It has a mid/light 200gsm polyfill with a soft cotton lining. Double chest straps, front shoulder gusset, cross-over surcingles, legstraps and tailguard. 
A really useful ideal lighter weight stable quilt.

520 denier
Breathable
200gsm polyfill
TOG rate: 4
Mid-lightweight