The Big Agnes Insulated Q-Core Sleeping Pad is lightweight and compact, this is the most comfortable of three season pads with 3.5" of comfort and alternating I-Beam construction to eliminate seams and cold spots. X-Static synthetic insulation uses the natural performance of silver filament to enhance thermodynamic, anti-microbial and anti-odor properties. The Insulated Q-Core is an air chamber style pad that is a more comfortable & compact alternative to self-inflating models and ensures quick inflation/deflation as well as consistent air flow and stability. The Q-Core pad is made from durable, light weight nylon rip-stop on the top & bottom and features a non-breakable brass valve with plastic coated EZ-Flate™ mouthpiece. The Q-Core pad includes stuff sack and repair kit.