18 Waits | Jewelry & Accoutrements | Billy Cap | Blue Stripe $35 Billy Caps are hand-made in Montreal. Based on a vintage pattern and updated by 18 Waits. Wool is sourced from Woolrich Woolen Mills in Pennsylvania. This Fall/Winter we are offering three variations: charcoal herringbone, light grey herringbone, and brown plaid. Trimmed with a super-soft leather sweatband.