In order to live up to the same high standards of the leather upper of the boots, the sole of the R.M.Williams boots have to be of the same calibre. Thus, all of their soles are tailored to meet the different requirements of the boots, from the dress boots to their work boots.

Welt Sole Boot: used in various styles, including the dress shoes; these soles are very defined and durable, easily moulding to the shape of the foot for added comfort. A strip of welting leather is attached to the insole and upper of the shoe which is then stitched to the sole using a wax dipped thread. This type of sole gives the boots the following features:

	Carefully selected piece of upper leather which is sewn by one seam at the back, adding to the comfort of the boot with its ability to mould to the shape of the foot. With just one seam there is also a greater water resistance.
	Double stitched sole with bonded nylon thread for maximum strength.
	Polyester bound elastic to provide a snug fit and ease when putting boots on.
	Pull-on woven tugs that are stitched between the back lining and front lining and upper, in order to provide ease when putting the boots on and strength so they will not pull out.
	Yearling back linings and a kid leather front cover the elastic edges for comfort.
	Vegetable tanned leather in-soles for comfort; allowing breathability and its thick properties allow it to retain its shape.
	Thermo-plastic laminated toe stiffener, protects the toes and keeps the shape of the boot.
	Moulded heel stiffener inserted between the upper and heel lining retains the shape of the heel.
	Rib tape glued to innersole, allows for the upper to be attached.
	Hot melt glue used to fix the toe to the insole rib which provides support for the arch of the foot and retains the shape of the sole.
	Soles stitched with waxed thread.
	Forged steel shank with rubber tuck.
	Cork filler used to fill the cavity at the forefront of the shoe.
	Stacked leather heel to reduce any swelling from water and provides additional durability to the boot nails.
	Heel has a composition rubber top piece which provides a shock-absorbing ability and longer wear of the boots.
	Flat heel fixed to the boot using ten special nails.
	Leather heel sock, which covers the nails for smoother comfort.

The Screwed Sole: a soft brass, screw threaded wire is used in this manufacturing process which screws the sole to the leather of the shoe. With the brass being a soft metal, this will wear down at the same rate as the leather of the sole, which adds to the overall comfort of the sole. This type of sole is perfect for riding, dress and work boots.

	Carefully selected piece of upper leather which is sewn by one seam at the back, adding to the comfort of the boot with its ability to mould to the shape of the foot. With just one seam there is also a greater water resistance.
	Polyester bound elastic to provide a snug fit and ease when putting boots on.
	Double stitched sole with bonded nylon thread for maximum strength.
	Leather throat to the shoe, with heel linings to cover elastic edges for maximum strength.
	Pull-on woven tugs, stitched between the back lining and front lining and upper, in order to provide ease when putting the boots and strength so they will not pull out.
	Vegetable tanned leather in-soles for comfort; allowing breathability and its thick properties allow it to retain its shape.
	Thermo-plastic laminated toe stiffener, protects the toes and keeps the shape of the boot.
	Moulded heel stiffener that is inserted between the upper and the heel lining, to retain the shape of the heel of the shoe.
	The uppers are attached to the insole at the back part moulding stage which suits a heavier duty work purpose.
	Insoles made of butt leather and outer-soles made from rump of cattle hides.
	The uppers of the boot are fixed to the insole using steel “tingles” (tacks) in the toe and waist area. Alongside a forged steel shank this allows for a heavier duty boot.
	The leather soles are attached to the insoles with threaded brass wire which will wear down with the leather to provide a more comfortable fit. R.M.Williams are one of the only companies in the world to be employing this method.
	Ten special nails are used to fix the heel of the boot to the boot; this allows for shock absorption and durability.
	The nails are covered with a leather sock which provides comfort.

Longhorn Treaded Sole: made of stout rubber this sole has a significant mould to its tread.

Longhorn Plain Sole: similar to the above but with a minimal, non-slip tread.

The designs and innovations that have gone in R.M.Williams boots is clear, and in-keeping with traditions whilst also adding modern technologies to the boots, e.g. the thermo-plastic toe stiffeners. Every intricate little detail has been considered when it comes to the production of R.M.Williams boots, allowing them to be some of the highest, if not the highest, quality of boots on the market today.