Jackets with square patterns can be purchased through Etsy and eBay. Etsy has handmade and vintage styles of jackets with square patterns. EBay has new and used jackets for sale that feature square patterns.
In addition to selling handmade jackets with square patterns, some Etsy shop owners also sell knitting and crochet patterns for jackets. Most of these jackets are intended for women. Shoppers can filter searches by price, color and location.
EBay lists men's and women's square pattern jackets. Jacket patterns are also for sale on eBay. Some of these jackets can be purchased for a set price, while others are up for auction.