Dr. Martens Men's Baynes Kaya Chukka Boot 100% Nubuck Leather Imported Synthetic sole 5-eye chukka boot Air-cushioned, synthetic sole Slip resistant Classic doc dna: goodyear welted stitch, heel loop and grooved sides the raw style of our 5-eye men's chukka boot is played out in rich, smooth nubuck leather with a contrasting white outsole.