Rab's techy insulating system includes the Cirrus Insulated Skirt, a sleek and stylish solution for added warmth while belaying, touring, and enjoying winter's wonders. Pertex Quantum fabric offers wind- and water-resistant protection, and its baffles hold the down-like PrimaLoft insulation in place while encouraging it to fully loft for maximum warmth. On the reverse side, a stretchy Matrix fabric ensures comfortable range of motion and offers a sleeker face for more casual adventures.