The A1 Underquilt provides significant warmth and wind protection from below. Designed to perfectly cocoon the bottom of the AERIAL A1 to keep you toasty warm. This underquilt uses light weight nylon and synthetic down insulation to create a gap-free covering of the AERIAL A1 sleeping platform. 

Specs 
Material: 20 denier, Nylon
Insulation: Synthetic, Down Mimic
Weight: 1.32kg / 2.9Lbs
Temperature Rating: -7° C / 20° F
Packaged Size - 40cm x 20cm / 16” x 8”