The Merlin Sierra D3O Motorcycle Boot features a lot of useful technology to keep your feet comfortable and safe in any riding situation. Whether it be commuting or off-roading, the Sierra is a boot you want!Premium Nubuck brushed leather upper with reinforced scratch rubber panels.Comfort mesh inner lining offers peak comfort on and off the bike.Hipora waterproof and breathable membrane.Non slip, deep lug sole for maximum grip.D3O armour protection used in the boot.The Merlin Sierra D3O Motorcycle Boot features a Vibram high grip, no slip sole. In a mid-height fit with full leather construction, the Sierra is a lightweight option that is easy to wear, has great comfort levels and importantly, high durability! Further increasing the Sierra's long list of game changing technology, it uses D3O armour to protect your foot. D3O is the best of the best when it comes to impact absorbing protection.The Vibram sole features a vulcanised rubber compound that offers long lasting durability, with