The Peter Grimm Pig Pen is made from 100% cotton. Part of the Peter Grimm x Peanuts Collection. Adjustable sizing. Offering great U.V. sun protection, great style and lightweight convenience. Every hat we make is an original, designed by me, here in San Diego. We make hats for True Characters. Those trendsetters and tastemakers who recognize craftsmanship, style, quality and value. Show your True Character to the world in a Peter Grimm hat and tell us your story.