The Evolution Of A Classic. After Putting Tons Of Miles On Our Original 500S, We Applied Everything We Learned Into This Series Of Boots. The Result? A Longer-Wearing, Leather Lined, Lightweight Boot Designed For Ultra Comfort, Come Rain Or Shine.Leather-LinedComfort Eva Footbed With Xrdtm Technology In The Heel-Strike ZoneExtra Set Of Footbeds For Fit AdjustmentSku: 587-RUSTICBLKUnisexAdult