Merlin Sierra D3O® Boots Black

The Merlin Sierra WP D3O® Boot is a waterproof motorcycle boot designed for riders who need reliable protection and weather resistance across a range of riding conditions. Built around Merlin's adventure-touring philosophy, the Sierra pairs a waterproof construction with integrated D3O® impact protection to keep riders comfortable and protected on longer journeys.

Available in EU sizes 41 through 45, the Sierra WP suits riders looking for a capable, year-round boot that doesn't compromise on either safety or all-weather performance.

• Waterproof construction for all-weather riding
• Integrated D3O® impact protection
• Adventure and touring-oriented design
• Available in EU sizes 41–45

Wipe the boot exterior with a soft damp cloth after each ride; avoid petroleum-based solvents or harsh detergents that can degrade waterproof membranes and adhesives.
If the boots become saturated, allow them to dry naturally at room temperature — keep them away from direct heat sources such as radiators or hair dryers, which can warp materials and damage the waterproof lining.
To restore water repellency over time, apply a DWR (Durable Water Repellent) spray approved for use on motorcycle footwear, following the spray manufacturer's directions.
D3O® armour inserts do not require removal or special maintenance under normal use; inspect them periodically for cracking or deformation and replace if physically damaged.
Store in a cool, dry location out of direct sunlight; UV exposure can degrade materials and colourfastness over time.
Inspect buckles, zips, and closures regularly for wear or corrosion; lubricate zip sliders with a silicone-based product if they become stiff.
Check the soles periodically for wear, particularly around heel and toe strike zones; excessive sole wear affects both grip and protection.
After riding in saltwater or heavy mud, rinse the boots with fresh water and dry naturally before storing.