This Colour 8 Shell Cordovan strap is made from vegetable-tanned horse butt leather by Horween, USA. Shell Cordovan is famous for its gorgeous subtle sheen and unique crease-resisting property due to the density of the leather. It requires very little care and over time, develops a beautiful patina (more so on lighter colours). Shell Cordovan begins as a shiny leather and over time becomes duller with wear. This shine can be replenished through the application of leather conditioner and brushing vigorously. Leather: Colour 8 Shell Cordovan Stitching Colour: Aubergine (031) Strap Thickness: 4mm at the folded flap, tapering to 2.5 Temper: Medium Surface: Smooth Patina: Moderate Water Resistance: Moderate. To ensure longevity, avoid moisture or soaking our straps in water.