The Vintage 90s Champion Sweatshirt features a unique transverse stitching method, pioneered by the brand in 1934, which is cut on the cross-grain. This method was developed after considering the concerns of coaches about shrinkage in athletic wear during washing. Unlike most sweatshirts, which are vertically stitched for efficiency, Champion's method is more time-consuming but results in a durable and shrink-resistant product. The updated stitching method, known as Reverse Weave, maintains the integrity and construction of the sweatshirt for long-lasting wear.