Online Shoe Shopping: An Expert Guide to the Right Size, Fit, and Hassle-Free Returns

Instead of wandering around stores for hours, browsing thousands of styles while sipping your coffee in the comfort of your home is far more convenient. In that sense, online shoe shopping is a true luxury—yet before clicking the “Buy” button, nearly everyone has the same question in mind:

“Will it fit me?”

Because of this, buying shoes online can sometimes feel like leaving it to luck. But online shopping is not a game of chance. If you measure your feet correctly and read size and fit details properly, the shoes you buy online can fit as perfectly as if you had tried them on in-store.

At Derimarket, we ship hundreds of orders every day across Türkiye and all around the world with our Pegia and Cool Moon collections. And the most common thing we see is this: Returns are not caused by the wrong size—but by misreading the fit. That’s why in this guide, we gathered everything in one place: from choosing the right size to measuring at home, from model-specific tips to a smooth return process.

Section 1: Size (Number) and Fit (Shoe Interior Volume) Are Not the Same Thing

The most common misconception: “I’m a size 38.”

In reality, you are not a “fixed size.” The shoe’s length is one thing; the volume/feel inside the shoe is another.

• Size (Number): The length of the shoe.
• Fit (Last): The shoe’s width, toe shape, forefoot volume, ankle opening, and interior depth.

The same size can feel completely different in two different models. A size 38 heel and a size 38 winter boot won’t fit the same way on the same foot.

Let’s quickly decode fit terminology:

• Narrow fit: Tighter in the forefoot; the toe may be narrower.
• True to size: Standard measurements; most people buy their usual size.
• Wide fit: More interior room; creates a “roomier” feel—especially in boots worn with thick socks.

Section 2: Scientific Foot Measurement at Home: A Clear Result with Paper & Pencil

You don’t need a store’s metal measuring device at home to guess your shoe size. The paper-and-pencil method below is highly reliable when done correctly.

Best time to measure: Evening

Feet swell during the day as you walk. Morning measurements often turn out “smaller” for many people.

Step-by-step measurement

1. Place a blank A4 sheet on the floor, with the short edge touching a wall.
2. Wear the socks you plan to use with the shoes you’re buying:
• Winter boots → thicker socks
• Ballet flats/loafers → thinner socks
3. Stand on the paper and lightly touch your heel to the wall.
4. Mark the tip of your longest toe (hold the pen upright).
5. Measure the distance from the wall line to the mark (e.g., 24.5 cm).
6. Measure both feet. Most people have one foot slightly larger. Always use the larger measurement.

Forefoot width tip (ball of the foot)

Measuring the widest part of your foot (between the big toe joint and the little toe joint) with a tape measure can be a lifesaver when choosing between narrow vs. wide fits. If your forefoot is wide, lace-up models or roomier boots may be more suitable.

Section 3: Model-Based Size Selection Tips

In online shopping, there is no “one rule”—there is the nature of the model.

1) Sneakers / sports shoes

When walking, the foot moves forward slightly. A bit of toe room often feels better. Many people feel more comfortable with half a size up in sneakers (may vary by brand).

2) Classic heels

In heels, body weight shifts forward. If the toe box narrows, the forefoot can feel cramped. For wider feet—especially in narrow-toe models—size selection requires extra care.

3) Boots and knee-high boots

• Leather boots: Most are produced true to size.
• Boots lined with sheepskin: They may feel firmer on the first wear; the lining adapts to your foot over time. Choosing a size that’s too large may later create a “loose” feel. Pegia and Cool Moon fur-lined (sheepskin-lined) boot models are produced true to size. Therefore, unless stated otherwise, you are advised to purchase the size you normally wear.

4) Loafers and ballet flats

This is the riskiest group in terms of fit because there is usually no lace or elastic adjustment. The shoe needs to hug the foot properly. Leather models stretch over time; still, it matters that the shoe does not feel like it’s “floating” on your foot at the beginning.

Section 4: A Mini Pre-Order Checklist

A 30-second check before confirming your cart can greatly reduce return stress:

• Is there a fit note in the product description? (Narrow fit, wide fit, etc.)
• What is the material? Leather adapts somewhat; synthetic uppers usually stretch less.
• Are the return/exchange terms clear? Are shipping, time limits, and the process transparent?

Section 5: A “Professional Try-On” Routine When the Package Arrives

The moment you open the box, it’s important to try on the shoes in a way that protects your return rights.

1. Try them on over a carpet. Do not step on surfaces that may dirty the outsole.
2. If possible, try them on in the evening again.
3. Walk around indoors for 5–10 minutes:
• Does the heel slip?
• Do your toes hit the front?
• Is there pressure on the forefoot?
4. If you suspect a manufacturing issue or defect, photograph it immediately.

Section 6: Returns & Exchanges: Know Your Rights, Reduce Stress

In Türkiye, for distance sales, consumers have the right to withdraw from the contract within 14 days without giving a reason and without paying a penalty.

The period generally starts from the day the product is received.

After the withdrawal notice is received, the seller is obliged to refund the collected payments within a certain period.

Return shipping cost: the “pre-information” is decisive

In practice, the return shipping fee may vary depending on the seller’s pre-information text and the carrier they specify; and since there are regulatory changes that may have impacts as of 2026, it is especially important for consumers to read this section carefully before ordering.

Critical practical tips for returns

• Do not wear the shoes outdoors.
• Make sure you return the product in “resaleable” condition, with its box, brochures, etc.
• Do not tape the shoe box directly; protect it with an outer carton or shipping bag.

Section 7: The Most Common Mistakes (And Easy Fixes)

Mistake 1: Buying small thinking “it will stretch over time”

Leather mostly adapts in width; it doesn’t work miracles in length. If your toes are pressing against the front, that size is risky. We recommend returning it and buying one size up.

Mistake 2: Trying on only one shoe

Feet are not symmetrical. Put on both shoes and walk.

Mistake 3: Saying “I’ll deal with it later” and missing the return window

14 days pass quickly. Don’t delay—try them within the first 2–3 days and decide.

Section 8: Details That Make Online Shopping Easier at Derimarket

When the comfort of online shopping meets the right information, it becomes true convenience. At Derimarket, what makes this process easier for you:

• Clearer guidance on product pages (fit/usage recommendations)
• Quick fit guidance via the customer support team
• A regular and trackable return process

Conclusion: In Online Shopping, It’s Not Luck—It’s a System

Online shoe shopping stops being guesswork when you know your feet, measure correctly, understand fit language, and try on properly indoors. Then returns are not something that “happens to you”—they become a safety net you can use comfortably when needed.

Before adding your favorite model to your cart at Derimarket.net, review this guide once more. Then shop with confidence: Right size + right fit = a hassle-free experience!