Toyotas super jeans could be the best choice if youre investing in a sewing machine or want to upgrade your old one as its name suggests its strong enough to sew denim and other thick fabrics that often defeat standard machines and it can also sew thicker thread to create much stronger seams a huge benefit if youre making curtains or upholstery it has a unique gliding foot that can cope with up to 12 layers of fabric yet unlike its huge industrial big brothers the whole machine weighs