The Quinny Buzz Footmuff is a snug-fitting insulated sleeping bag that fits into the seat of the Quinny Buzz stroller. Naturally, it coordinates perfectly. The lower half of the Buzz Foot muff's shell threads neatly through the straps of the Buzz stroller's 5-point harness, and the upper half are removable. This feature enables you to get your son or daughter in and out of the seat and foot muff by simply unzipping the upper portion of the insulating shell. In the warmer months, you can remove the top half completely and leave the padded lower portion of the Buzz Footmuff in place for added seat padding. The insulating material of this foot muff is synthetic, and the outer shell cotton lined.