Double insulated air chamber pad. 2.5" thickness offers more comfortable and compact alternative to self-inflating pads PrimaLoft Eco synthetic insulation made from 50% recycled materials layered with high density foam to make our warmest air chamber pad I-beam construction eliminates welded seams to reduce cold spots and ensures quick inflation/deflation, consistent air flow and stability Durable 70D hexagonal rip-stop nylon top and 70D nylon bottom Internal polyurethane coating Non-breakable