Finding the right sandals fit is about more than just immediate comfort when you initially put on a pair. A well-fitting sandal supports the foot properly during walking, helps prevent blisters, and reduces the risk of foot pain over time.
One of the most overlooked areas when choosing a pair of sandals is the heel. People often focus on the toe box or the straps across the front of the foot, but heel placement plays a major role in whether sandals feel stable and comfortable during long days of wear.
So how should your heel fit in sandals? The short answer is simple. Your heel should sit securely within the footbed without hanging over the edge of the sandal or sitting too far forward.
Understanding this small detail can make a big difference when choosing the perfect pair.
Where Your Heel Should Sit
In a well-fitting sandal, the heel should sit comfortably within the back portion of the footbed. Ideally there should be a small amount of space between your heel and the edge of the sandal, usually around a few millimeters.
This small gap provides enough wiggle room for natural movement when walking. If your heel sits exactly on the edge of the sandal, it may rub against the material during movement.
The heel should also sit flat and stable on the insole. If the heel feels like it is sliding around, the sandal size may not be correct or the design may not suit your foot shape.
Supportive construction can help here. Sandals that combine a structured footbed with adjustable straps tend to hold the heel in place more effectively. Blundstone sandals fit into this criteria with the Aerocork sole as well as adjustable straps across the top, which help keep the foot properly aligned during walking.
Avoiding Heel Overhang
Heel overhang is one of the most common signs of ill-fitting sandals. This happens when the back of the heel extends beyond the edge of the sandal. Not only can this feel uncomfortable, but it also increases the risk of blisters and calluses.
Overhang can also place pressure on the foot in unnatural ways. Over time, this can contribute to foot issues such as plantar fasciitis or general foot pain.
A properly sized sandal should support the entire heel within the footbed.
Leave Room for Movement
Even when the heel is positioned correctly, the foot still needs space to move naturally.
When walking, your foot expands slightly with each step. This is why a small amount of extra room around the heel and toe box is important.
Too little space can create pressure points, while too much room can cause the foot to slide around. Both situations can lead to blisters or discomfort during long walks.
The goal is a balanced fit that keeps the foot stable without feeling restrictive.
Why the Footbed Matters
The shape of the footbed plays a major role in how well your heel fits.
A well-designed footbed supports the natural curves of the foot. This includes features like a slight heel cup that helps keep the heel centered and stable.
Supportive footbeds also help distribute weight evenly across the foot. Combined with good arch support and cushioning, this helps reduce strain during extended walking.
Blundstone’s Aerocork Sandal Series, for example, uses a lightweight midsole made from recycled cork and PU that helps provide cushioning while keeping the sandal light enough for everyday wear.
How to Check if Your Sandals Fit Properly
If you are trying on a new pair of sandals, there are a few simple checks you can use to evaluate the fit.
Stand naturally and look at where your heel sits on the sandal. It should rest fully within the footbed without touching the edge of the sandal.
Your longest toe should also sit comfortably within the front of the sandal. There should be a small amount of space between the big toe and the edge.
If your toes hang over the edge, the sandal size is likely too small.
The widest part of your foot should align naturally with the widest part of the sandal. If it spills over the side, the sandal may not match your foot shape. This is particularly important for people with wide feet or bunions.
Many strappy sandals like the Blundstone Aerocork range include adjustable straps or buckles. These allow you to fine-tune the fit across the forefoot and instep. Adjusting these straps can help stabilize the heel and improve overall comfort.
Measuring Your Foot Size
If you are unsure about your sandal size, measuring your foot at home can help.
Place a piece of paper on the floor and stand on it with your full weight evenly distributed. Trace the outline of your foot and mark the tip of your longest toe and the back of your heel.
Measure the distance between those two points. This measurement can then be compared to a brand’s size chart to determine the correct shoe size.
Keep in mind that feet can change over time. Checking your foot size occasionally can help ensure a better fit.
For a proper check you can go to a shoe shop and get your feet measured. If you have problems with your feet booking a meeting with a podiatrist can also be helpful to get advice on the best kinds of shoes and sandals for your feet.
Should You Size Up or Down?
People sometimes wonder whether they should size up when buying sandals. In most cases, your regular shoe size should work. However, certain situations may require a half size adjustment.
If your heel sits too close to the edge of the sandal, sizing up slightly may provide a better fit. On the other hand, if the sandal feels loose or your foot slides forward, a smaller size may work better.
Trying different sizes can help you find the perfect fit. Ultimately, different retailers shoe sizes can vary a little bit so you are best off using the size as a guide and instead focusing on the fitment as the main criteria as to whether the sandal fits or not.
Different Sandal Styles and Finding The Right Fit
Different sandal designs can affect how the heel fits. Slide sandals and flip-flops tend to provide less heel stability because there is no back strap. In these cases, a supportive footbed and good arch support become even more important.
Sandals with adjustable straps or buckles often provide a more secure fit. These designs can help keep the heel properly aligned within the footbed during walking.
Blundstone’s Aerocork Sandal Series follows this approach with supportive footbeds and adjustable straps designed to accommodate different foot shapes.
Blundstone is known for footwear built around durability and everyday comfort. That same philosophy carries into its sandal designs.
The Aerocork Sandal Series combines premium water-resistant leather uppers with lightweight cushioning and adjustable buckles that help create a stable fit. A memory-moulded footbed gradually adapts to the shape of your foot, improving comfort during long days of wear.
The collection includes classic colors such as Rustic Brown #2694, Sand #2699, and Rustic Black #2693, making the sandals easy to pair with a wide range of casual summer outfits.
Finding the Perfect Sandal
A proper sandals fit begins with heel placement. When the heel sits securely within the footbed and the foot has enough room to move naturally, the sandal becomes far more comfortable.
Taking the time to check heel placement, toe space, and strap adjustment can help you find the perfect pair.
The right sandals should feel supportive, stable, and comfortable from the start. With thoughtful construction and materials like those used in Blundstone’s Aerocork Sandal Series, summer sandals can handle everything from casual outings to long days on your feet.