Merlin Sierra D3O Vibram WP Boot | Left Side | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Back | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Right Side and Sole | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Right Side | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Left Side | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Back | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Right Side and Sole | Maidstone HD
Merlin Sierra D3O Vibram WP Boot | Right Side | Maidstone HD

Merlin Sierra D3O Vibram Waterproof Boots





  • Description
  • Features
  • Size Guide
  • Shipping and Refund

The Merlin Sierra D3O Vibram Waterproof Boots are the perfect combination of style, comfort, and durability. These boots are designed for those who love adventure and are ready to tackle any terrain. The Vibram high grip, and no-slip sole provides excellent traction, so you can confidently walk on any surface. The mid-height fit and leather construction make these boots lightweight and easy to wear, while the scratch rubber panels ensure high levels of durability.

The innovative ratchet closure system allows for a micro-adjustable precision fit, ensuring that your feet are snugly fitted into the boots. The D3O shock-absorbing impact protection adds an extra layer of safety to your feet, making these boots ideal for those who love to ride motorcycles or engage in other outdoor activities.

The Sierra boots also feature a hipora waterproof and breathable membrane, which keeps your feet dry and comfortable in any weather condition. The comfort mesh inner lining and antibacterial sole insert provide extra comfort, making these boots ideal for long walks or hikes.

The Merlin Sierra D3O Vibram Waterproof Boots are a must-have for anyone who loves adventure and wants to stay safe and comfortable while exploring the great outdoors.

  • Premium Soft Leather Upper
  • Reinforced Scratch Rubber Panels
  • Vibram️ High Grip, None Slip, Large Lug Sole
  • Comfort Mesh Inner Lining
  • High-Density Nylon Panels
  • Hipora Waterproof and Breathable Membrane
  • D3O️ Shock Absorbing Impact Protectors
  • Reinforced Composite Footbed
  • Gear Change Overlay
  • Micro-adjustable Precision Fit Ratchet Fitting
  • Antibacterial Sole Insert
UK Size 4 5 6 7 8 9 10 11 12 13
EU Mens 41 42 43 44 45 46 47
US Mens 8 9 10 11 12 13 14
EU Ladies 37 38 39 40
US Ladies 6 7 8 9


UK Shipping on orders over £50: FREE*

UK Shipping on orders under £50 (excluding fluids): £3.95

Additional premium services available at checkout

International Shipping: Shipping rates depend on parcel weight and destination. Rates are provided during checkout.

All orders placed up until 9.00am are dispatched the same working day except for Wednesdays and Sundays when we are closed. Any order placed after 9.00am or on a Wednesday or Sunday may not be dispatched until the next working day.


Product Availability:

Product availability is shown on all products. Where a product states 'Coming Soon - Dispatched in X Days', this is the expected lead time before stock is delivered to our store. The delivery method you choose will not affect this lead time and only relates to the delivery service we use once the product has been delivered to us.


Custom Charges

If you are ordering goods for delivery outside the UK, please note that your consignment may be subject to import duties and taxes, which are levied once the goods reach the country of destination. Any such charges levied in relation to customs clearance must be paid by you. It is accepted by you that Maidstone Harley-Davidson® has no control over additional charges in relation to customs clearance. Maidstone Harley-Davidson® recommends that you check with your local customs officials or post office for more information regarding importation taxes/duties that may be applicable to your online order. You will be the importer of record and responsible for any import VAT and duty that needs to be paid. In addition, any charges for import clearance will be paid by you, the customer. Refunds of any returned order will be of items, not the services incurred.


Maidstone Harley-Davidson® uses Royal Mail for smaller items and DHL for larger items (UK Shipping only)

Royal Mail deliveries are sent using the most appropriate service based on the value, size and weight of the parcel. If your item has not arrived within 5 working days on either service then please contact us by email

We also offer timed delivery services for faster delivery, which incur an additional charge over our standard delivery charges (£3.95 for orders below £50, free for orders over £50). All available delivery options are displayed during checkout.


Collect in-store:

Orders for in-store collection are FREE to collect, and are usually ready the same day, however there may occasionally be delays. A notification will be sent to you when your order is ready.

Please collect your items between 10am-5pm, on Mondays, Tuesdays, Thursdays, Fridays & Saturdays. NOTE: Our store is currently closed on Wednesdays & Sundays. Orders placed on these days will be available for collection on the following working day.


Returns & refunds:

Your right to cancel and return begins from when you place the order and ends 14 working days from when you received the goods. If you wish to cancel or return your order you must inform us by email at within this time frame. The buyer is responsible for paying the return postage and ensuring the goods are received back by us in as new condition. If you receive a faulty or broken item, you will be offered either a choice of a refund or replacement. Any return postage costs if an item is faulty or broken will be paid by



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