I put the toe boxes in my Louvin Brothers shoes. The “toe box” is a stiffener that holds the shape of the toe and also protects the wearer’s toes. This particular shape is a cowboy boot style I learned from my mentor; when I put this toe on cowboy boots I’m careful to create very sharp, defined corners. I’d planned and assumed that I’d be putting sharp corners on this toe shape for shoes, but once I started making shoes on this last the toes informed me that they wished to have softer, rounder corners and who am I to argue with my craft? So my shoes have a streamlined square toe, but with soft corners.