Reverse Weave is Champion's patented construction technique, developed in 1934, where fabric grain runs horizontally (side to side) rather than the standard vertical orientation. This seemingly simple change dramatically reduces vertical shrinkage—traditional sweatshirts shrink in length; Reverse Weave maintains its proportions wash after wash. The construction also creates a distinctive heavier feel and the sweatshirts' characteristic minimal stretch in length with more give around the body. Reverse Weave became iconic in streetwear for representing genuine heritage innovation: a technique developed for athletes that proved enduringly superior. Vintage Reverse Weave sweatshirts from the 70s, 80s, and 90s are highly collectible, prized for their construction quality and the way they've aged. Champion's Reverse Weave line remains in production, representing accessible quality in an era of disposable fashion. The term has become shorthand for Champion's premium-tier products, distinguishing them from licensed lower-quality Champion items. Understanding Reverse Weave helps consumers navigate Champion's various quality tiers.