While today clogs generally refer to chunky, backless slip-on shoes for women, historically the clog was defined by both shape and material. Traditional clogs have a wooden sole, but those are rarely seen in today's fashion shoes. When they are, it usually has a bit of added rubber on the bottom for both traction and durability.

Although we generally associate clogs with the Nordic countries, wooden shoes that can be termed clogs have historically been worn all over Europe, including the British Isles and Mediterranean countries such as Italy and Greece, where they were most predominant in the 18th and 19th centuries. Today these wooden shoes often remain part of traditional ethnic dress and are still worn because they are considered to promote health. In some cases, the clog remains as a wooden over-shoe to protect a delicate and expensive footwear from mud and rain.

For those in the United States, clogs have two main associations. The first is clog dancing, which originated in Europe. Clog dancing is a competitive dance sport in both the United States and Europe, although the shoes usually used now do not visually resemble the historical wooden clog, but tend to look more like a men's dress shoe with a boxy toe and are very loud (thanks to wood or metal plates) when dancing.

Otherwise, when it comes to clogs, many Americans think of 1970s fashion, where natural fibers, ropes and wood were popular in all manner of shoes for men and women.

While some of today's clogs hark back to that retro 1970s look, clogs are now often made of rubber or other comfortable materials, appear in both vibrant and natural tones and bear little resemblance to their wood ancestors. Today's clogs appear in a range of heel heights, and some clogs can be appropriate for men and women, although the style is dominated by women's shoes.

Crocs and their imitators represent the most recent evolution of the clog. These shoes, which started as comfortable gardening shoes, have become a fashion trend for both genders thanks to their easy wear-ability, multiple colors, unisex design and futuristic shaping.

A look at the helpful features that make walking shoes comfortable -- and supportive.

With summer here, people's thoughts turn to the outdoors -- mine included. Taking walks with my son is one of the things I love to do during the summer. Walking is enjoyable, I get to stop and visit with my neighbors and it is good exercise. Indeed, for those first starting an exercise program, walking is considered a good way to start.

But walking can get old pretty fast without the right shoes. Regular walking puts stress on the foot and on your other joints, and it can result in blisters and calluses. The proper shoes, though, can solve most of these problems. When considering your walking shoes, think about these parts of the shoe, and what they do:

Achilles notch. This is a sort of dip at the top of the back of the shoe. It is designed to reduce stress on the Achilles tendon, creating increased comfort, and allowing you to do more walking.

Ankle collar. Around the top of the back part of the shoe is a line of cushioning known as the ankle collar. This supports the ankle, and it helps stabilize you as you walk. It also contributes to a proper fit.

Upper. Look for an upper (the part of the shoe that goes over your foot) made with mesh on the inside. This helps ventilate your foot and keep it from getting sweaty as you walk. New technology makes the upper more breathable, while still being sturdy and protecting.

Toe box. This is the area that houses the toes. Look for one that is roomy, and that has a round shape. Make sure that your toes aren't squished together. A comfortable toe box can prevent blisters and chafing.

Soles. The soles are general divided into outsole and midsole. The outsole is the part you see on the bottom of your shoe. This provides traction and is usually made of sturdy materials with a slight give. The midsole is the part between the outsole and where your foot rests in the shoe. Often, there is a gel pad to further cushion your foot and reduce impact with the ground. You can also get removable insoles that provide further shock protection and cushioning.

Roll bar. This is part of the walking shoe that stabilizes the foot. It keeps the ankle and foot from rolling to the outside or inside, and plays a part in preventing injury.

While they can't necessarily work miracles, comfort shoes provide the wearer with benefits such as additional padding, observation of pressure points, wider soles and better support that improve the walking experience.

When you have a medical condition that makes walking uncomfortable, comfort shoes come to the rescue with special construction that can help make walking easy again. While they can't necessarily work miracles, they do provide the wearer with benefits such as additional padding, observation of pressure points, wider soles and better support that improve the walking experience.

Sometimes referred to as "orthopedic," comfort shoes are produced by a wide variety of manufacturers, such as Dr. Scholl's, Comfort One and even New Balance. In some cases, they are geared toward specific conditions that consumers might be dealing with, such as diabetes, while in some, they are designed for the average consumer who might need some extra protection against the rigors of walking.

For example, Arcopedico is one of the most popular manufacturers of comfort shoes, and they provide options in a wide variety of styles, colors and widths. Their most notable feature is the polyurethane outsole, which helps absorb the impact of every footfall while providing additional traction to avoid slipping and falling. Other companies use similar materials for shock absorption and traction.

You'll also find that comfort shoes provide more room for the wearer, making it easier to stave off injuries to the foot, such as calluses, Dansko, for example, produces occupational comfort shoes that have Thermoplastic toe boxes that simultaneously provide the toes with more room and provide reinforcement for the shoe itself. Dansko also uses PVC for the inner frame, which protects the entire foot without sacrificing flexibility.

Dr. Scholl's also provides innovative designs in comfort shoes, such as their Women's Client mary janes, which have cushy memory foam insoles for shock absorption as well as suede leather uppers for maximum flexibility while walking.

Soft materials such as gel, memory foam and leather are the cornerstones of comfort shoes, as they allow the foot to move freely regardless of the speed or gait at which the wearer walks. In many cases, these materials are combined with reinforcements, such as the PVC in the Dansko shoes, providing support for the moments when you need it most. Some are also made with different variations of canvas, which is both breathable and durable.

Additionally, most comfort shoes are built upon a foundation of extreme traction because consumers who buy these types of shoes are more prone to slip-and-fall accidents. Rubber tread is the most frequently used material for this type of feature, and can vary depending on the amount of slip resistance required for the shoe. Cross-hatched tread is generally the most effective, and is common with tennis shoes, walking shoes and sometimes even sandals.

And finally, clogs are the latest style in comfort shoes, and are preferable to many closed-toe versions because of their breathability. In years past, comfort shoes were often considered ugly and were easily identifiable, but now manufacturers are focusing on style as much as function. Clogs often have adjustable heels that allow for swelling and other changes to the foot during the day, and are sometimes just as comfortable as your standard walking shoe.

While they can't necessarily work miracles, comfort shoes provide the wearer with benefits such as additional padding, observation of pressure points, wider soles and better support that improve the walking experience.

When you have a medical condition that makes walking uncomfortable, comfort shoes come to the rescue with special construction that can help make walking easy again. While they can't necessarily work miracles, they do provide the wearer with benefits such as additional padding, observation of pressure points, wider soles and better support that improve the walking experience.

Sometimes referred to as "orthopedic," comfort shoes are produced by a wide variety of manufacturers, such as Dr. Scholl's, Comfort One and even New Balance. In some cases, they are geared toward specific conditions that consumers might be dealing with, such as diabetes, while in some, they are designed for the average consumer who might need some
extra protection against the rigors of walking.

For example, Arcopedico is one of the most popular manufacturers of comfort shoes, and they provide options in a wide variety of styles, colors and widths. Their most notable feature is the polyurethane outsole, which helps absorb the impact of every footfall while providing additional traction to avoid slipping and falling. Other companies use similar materials
for shock absorption and traction.

You'll also find that comfort shoes provide more room for the wearer, making it easier to stave off injuries to the foot, such as calluses, Dansko, for example, produces occupational comfort shoes that have Thermoplastic toe boxes that simultaneously provide the toes with more room and provide reinforcement for the shoe itself. Dansko also uses PVC for the inner
frame, which protects the entire foot without sacrificing flexibility.

Dr. Scholl's also provides innovative designs in comfort shoes, such as their Women's Client mary janes, which have cushy memory foam insoles for shock absorption as well as suede leather uppers for maximum flexibility while walking.

Soft materials such as gel, memory foam and leather are the cornerstones of comfort shoes, as they allow the foot to move freely regardless of the speed or gait at which the wearer walks. In many cases, these materials are combined with reinforcements, such as the PVC in the Dansko shoes, providing support for the moments when you need it most. Some are also made with different variations of canvas, which is both breathable and durable.

Additionally, most comfort shoes are built upon a foundation of extreme traction because consumers who buy these types of shoes are more prone to slip-and-fall accidents. Rubber tread is the most frequently used material for this type of feature, and can vary depending on the amount of slip resistance required for the shoe. Cross-hatched tread is generally the most effective, and is common with tennis shoes, walking shoes and sometimes even
sandals.

And finally, clogs are the latest style in comfort shoes, and are preferable to many closed-toe versions because of their breathability. In years past, comfort shoes were often considered ugly and were easily identifiable, but now manufacturers are focusing on style as much as function.Clogs often have adjustable heels that allow for swelling and other changes to
the foot during the day, and are sometimes just as comfortable as your standard
walking shoe.