Men's Nunn Bush Bleeker Street Loafers Men's Nunn Bush Leather Walking Shoe. Stroll around in comfort and style in the Nunn Bush Bleeker Street Slip On. Designed with comfort in mind these slip-on leather loafers feature a full fitting toe box, double elastic panels for a secure fit, and a Comfort gel footbed. Whether walking around the office or strolling in the park, these shoes are sure to keep you looking and feeling great!