The insulated sheet that transforms into a pillow on-the-go. Use on its own comfortably to ~55F / 13C. Add 10F of warmth to your system Wing grabs in the corners let you wrap it around you and yours Loops on the sides align perfectly with the Hoverquilt (Duo or Solo). Integrated zipper pocket to stash phone, keys, headlamp, & transforms into comfy pillow This is pure comfort on-the-go. With a touch of insulation between softweave fabrics, it packs down tiny and can travel with you on a plane, a road trip, camping, hammocking, or at home watching TV. Use it as a pillow, a sheet, a light blanket, or wrap anytime you need a little boost of warmth.