The Ultimate Guide to Birkenstock: Fit, Sizing and Choosing Your Perfect Pair

Birkenstock shoes have earned their place as a warm-weather essential, but they offer much more than an iconic look. With a contoured footbed, adjustable straps and a wide variety of styles, Birkenstocks are designed to support your feet and become more comfortable with wear.

The key is finding the right size, width and style. Here is everything you should know before choosing your next pair.

How Should Birkenstocks Fit?

Birkenstocks often fit differently from other sandals. Your foot should sit comfortably inside the raised edge of the footbed, with a little room around it.

A properly fitted pair should have:

• A small amount of space in front of your toes
• A little room behind your heel
• Toes that do not touch the front edge
• A heel that rests naturally inside the heel cup
• Arch support that lines up with the arch of your foot
• Straps that feel secure without holding your foot too tightly

Birkenstock recommends approximately ¼ inch, or about 6 mm, of space around the foot. Your toes need room to move naturally as you walk, so avoid choosing a pair that fits exactly from heel to toe. See Birkenstock’s official fit guide.

Should You Size Up or Down in Birkenstocks?

Birkenstocks use European sizing, and one European size may cover more than one Canadian or US size. Instead of automatically sizing up or down, use your usual shoe size as a starting point and then check how your foot sits in the footbed.

Please see this conversion chart to find your size

If you are between sizes, pay attention to:

• Where your heel lands in the heel cup
• Whether your toes touch the front edge
• Whether the toe bar sits comfortably beneath your toes
• Whether the arch support feels properly positioned

Always fit the larger foot, since it is common for one foot to be slightly bigger than the other.

Whenever possible, try Birkenstocks on in person. A proper fitting can make a big difference, especially if this is your first pair.

Regular Width or Narrow Width?

Birkenstock offers many styles in two widths:

• Regular/Wide: Designed for medium to wider feet
• Narrow: Designed for narrow to medium-width feet

Do not assume you need a narrow width simply because you usually wear women’s footwear. Many women are most comfortable in Birkenstock’s regular width.

Look at the footprint symbol printed inside the shoe. An outlined footprint indicates regular width, while a filled-in footprint indicates narrow width.

You may need a narrow fit if there is a noticeable amount of space along both sides of your foot, even after adjusting the straps. Your foot should still have a little space in a narrow footbed, but it should not slide around or ride up against the edges. Read Birkenstock’s width guidance.

How Tight Should the Straps Be?

The straps should keep the sandal comfortably in place without pinching or pressing into your foot.

There should be enough room to slide a finger between the strap and the top of your foot. Your heel may lift slightly as you walk, which is normal. Birkenstocks are designed to allow your foot to move naturally rather than being tightly secured to the shoe.

If the straps leave deep marks, cause pressure or prevent your foot from moving, loosen them by one hole.

Why Do Birkenstocks Need to Be Broken In?

A new pair of Birkenstocks may feel firm at first. This does not necessarily mean they are the wrong size.

The cork-latex footbed gradually softens and adapts to the shape of your foot. The suede lining also becomes smoother with wear. This creates the personalized fit Birkenstock is known for.

Start by wearing your new pair indoors for one or two hours at a time. Gradually increase the amount of time you wear them as your feet adjust. Keep the straps slightly loose during the first few wears to help avoid pressure points.

It may take several wears before they feel completely broken in, particularly if you are not used to structured arch support.

Original Footbed or Soft Footbed?

Birkenstock offers both its classic original footbed and a soft footbed in selected styles.

Original Footbed

The original footbed has a firm, supportive feel. It features a deep heel cup, raised toe bar and contoured arch support. It takes a little time to break in but gradually conforms to your foot.

Choose it if you:

• Prefer firm support
• Are familiar with traditional Birkenstocks
• Want the classic Birkenstock feel
• Do not mind a gradual break-in period

Soft Footbed

The soft footbed includes an additional layer of foam cushioning while maintaining the brand’s contoured support. It often feels more comfortable right out of the box.

Choose it if you:

• Prefer extra cushioning
• Have sensitive feet
• Are new to Birkenstocks
• Want a softer initial feel

The soft footbed is not necessarily more supportive than the original. The main difference is the added cushioning.

Which Birkenstock Style Is Right for You?

Arizona

The Arizona is Birkenstock’s classic two-strap sandal. Both straps are adjustable, making it one of the easiest styles to personalize.

Best for: Everyday wear, first-time Birkenstock buyers and anyone who wants a versatile sandal.

Boston

The Boston is a closed-toe clog that can be worn through several seasons. It pairs well with everything from relaxed denim to workwear and can be worn with or without socks.

Best for: Transitional weather, year-round wear and anyone who wants more toe coverage.

Gizeh

The Gizeh combines the supportive Birkenstock footbed with a thong-style upper. Its adjustable buckle provides a more customized fit than a traditional flip-flop.

Best for: A streamlined, slightly dressier summer sandal.

Mayari

The Mayari features a toe loop and crossing straps for a secure, delicate-looking fit.

Best for: Someone who likes the support of Birkenstocks but wants a lighter, more feminine silhouette.

Madrid

The Madrid is a simple one-strap slide with a clean, minimal look. Since it has less coverage across the foot, getting the width and strap adjustment right is especially important.

Best for: Easy slip-on wear, travel and minimalist style.

Milano

The Milano offers the familiar two-strap design of the Arizona with an added back strap.

Best for: Extra security, longer walks and anyone who prefers a sandal that stays more firmly on the foot.

Birkenstock EVA Styles

EVA Birkenstocks are lightweight, waterproof and easy to clean. They are made from a single piece of flexible EVA material rather than the traditional cork footbed.  Often EVA comes in a variety of bold colours.

Best for: The beach, pool, cottage, garden and wet-weather activities.

EVA styles feel different from classic cork Birkenstocks and may fit slightly differently, so trying them on is still recommended.

Choosing the Right Upper Material

Your choice of material can affect the look, feel and break-in time.

• Suede: Soft, flexible and casual. It may feel comfortable quickly but can stretch with wear.
• Oiled leather: Durable with a rich, natural finish that develops more character over time.
• Smooth leather: Structured, polished and long-lasting.
• Nubuck: Soft with a lightly brushed finish and a more refined appearance.
• Birko-Flor: A durable synthetic material with a soft backing that is easy to maintain.
• EVA: Waterproof, lightweight and ideal for casual outdoor use.

Natural leather and suede can vary slightly in colour and texture. These variations are part of what makes each pair unique.

Can Birkenstocks Get Wet?

Traditional cork Birkenstocks should not be soaked or left in direct heat. Water can damage the cork, leather or suede over time.

If they get wet, allow them to air-dry naturally away from radiators, fireplaces and direct sunlight. Avoid putting them in a washing machine or dryer.

For the beach, pool or dock, choose a waterproof EVA style instead.

Quick Birkenstock Fit Checklist

Before deciding on your pair, check that:

• Your heel sits comfortably inside the heel cup
• Your toes do not touch the front edge
• The arch support lines up with your foot
• Your foot is not resting on the raised sides
• The width feels comfortable without excessive space
• The straps feel secure but not tight
• You can move your toes naturally

Find Your Perfect Pair at Bigley’s

The right Birkenstocks should give your feet room to move while providing the structured support the brand is known for. Whether you love the classic Arizona, the year-round Boston or a lightweight EVA style for cottage season, the best pair is the one that suits both your foot and your lifestyle.

Visit Bigley’s Shoes and Clothing in Bobcaygeon to explore our selection and get help finding your ideal size, width and style.