DUNHAM. CI5609. GLASTONBURY SLIP-ON. BROWN. The Glastonbury collection of waterproof outdoor footwear embraces Dunham s 135-year history of bootmaking while incorporating the best modern design features. The sleek leather uppers of the brown Glastonbury slip-on are seam-sealed for dryness and have eco-friendly recycled polyester linings to cool feet and control odor. Sturdy Strobel construction. EVA midsole with a rubber tread outsole suitable for almost any terrain.