Ultralight and compressible, Topquilts cut out weight of zippers and added materials without cutting out warmth. Sleep warmer with LoftTek insulation; Not all insulation’s are equal and the LoftTek 30°F TopQuilt microfiber insulation is top of the class. It tested at more than double the warmth of standard insulation. Its rip-stop fabrics strengthen the lightweight sleeping bag, while the bonded LoftTek insulation allows it to be machine washable. The LoftTek 30 Degree Ultralight Backpacking TopQuilt is designed to work seamlessly with your Hammock or Sleeping Pad. It’s designed to keep you warm even if your TopQuilt gets wet.