Samelin M77 or 511? Comparison and Buying Guide
Short answer: choose M77 if you are looking for an especially thick leather upper, minimalist construction, and generous space for thick socks. Choose 511 if you value multiple color and pattern options, textile lining, and a TR rubber sole. For winter use, both model families have separately lined versions.
M77 and 511 are Samelin combat boots made in Estonia, but they are not the same shoe with a different appearance. The upper details, sole material, lining, sizing guide, and model options differ. This guide compares the regular M77 and 511 Black models from Naiselle.fi; winter versions are discussed separately.
M77 and 511 side by side
| Feature | Samelin M77 | Samelin 511 Black |
|---|---|---|
| Upper | 2.8–3.0 mm water-repellent leather. | Water-repellent natural leather; thickness not specified on the product page. |
| Outsole | Directly injected polyurethane, i.e., PU. | TR rubber. |
| Lining | Lightweight Cambrelle textile under the tongue. | Textile lining. |
| Insole | According to Naiselle.fi, anatomical, antibacterial, and washable. | The 511 Black product page does not specify the insole at the time of checking. |
| Sizing guide | According to the product page, roomy and also intended for thick socks. | Check the product-specific size chart; no general size recommendation is provided. |
| Colors and versions | Basic model in black; separate M77 Winter and inner sock. | Several colors and patterns as well as separate Winter and zipper versions. |
| Country of manufacture | Estonia. | Estonia. |
| A good choice when… | Thick leather and sturdy construction are the main selection criteria. | You want more color and version options or specifically a TR rubber sole. |
The comparison is based on current product information from Naiselle.fi and Samelin’s official military footwear catalog. It is not a laboratory or durability test, nor does the table guarantee a specific lifespan, waterproofness, or suitability for every foot.
Samelin M77: thick leather and minimalist design
Naiselle.fi’s M77 product page lists the upper as 2.8–3.0 millimeters water-repellent leather. The outsole is directly injected polyurethane onto the upper, and there is a lightweight Cambrelle textile lining under the tongue.
In Samelin’s Military 2023 catalog, model 8430-2075-80 is described as a full-grain leather shoe with a thickness of 2.8–3.0 millimeters, featuring a removable inner sock or insole, a directly injected PU sole, and a size range of 32–52. The catalog supports the key material information of the M77, but the current size and availability details of individual Naiselle.fi products are always checked on the product page.
Thick leather makes the M77 sturdy. At the same time, a new pair may initially feel stiff, so the fit of the shoe should not be judged solely by the material. If you are looking for a soft shoe right from the first use, the M77’s construction may not meet your expectations.
Who is the M77 suitable for?
The M77 is a justified alternative when your choice emphasizes thick leather, simple construction, and room for a thick sock. The product page describes the fit as generous and states the shoe is designed to be used with warm or double socks.
This does not automatically mean everyone should choose one size smaller. Foot length, width, sock thickness, and desired walking room affect the choice.
Samelin 511: colors, patterns, and different versions
The Naiselle.fi 511 Black product page states the upper is water-repellent natural leather, the outsole is TR rubber, and the lining is textile. The product is a unisex model, but the page does not provide a single size recommendation that fits everyone.
The 511 collection includes several colors, patterned versions, and winter models in addition to the basic black model. Features must be checked for each model. For example, the 511 Winter With Zipper 2.0 uses thick water-repellent leather, a TR rubber sole, warm lining, and a zipper according to product information.
Who is the 511 suitable for?
511 is a natural choice if appearance, color options, and model versions are an important part of your purchase decision. It is also suitable for buyers specifically looking for a textile-lined ankle boot with a TR rubber sole. However, current product information does not indicate that the 511 is always lighter, softer, or quicker to break in than the M77.
Which one is suitable for winter?
The basic model’s name alone does not determine winter suitability. The regular M77 does not have a warm full lining, but the generous fit allows room for a warm sock according to the product page. There is also a separate Winter Edition of the M77, which according to product information has a warm faux fur lining.
The 511 series includes separate Winter models with warm lining, and some also have zippers. Choose the winter model based on the lining, sole, size, and your personal needs. Neither shoe should be described as slip-resistant without model-specific sole testing or explicit manufacturer claims.
Size and fit
Choosing the size for M77
The M77 product page describes the fit as generous and designed for thick socks. Measure your foot from heel to the tip of the longest toe, decide what kind of sock you will use, and compare the measurement to the product’s size chart. Do not choose a size smaller based solely on general online discussions.
Choosing the size for 511
The 511 Black product page directs you to check the size chart in the product images but does not provide a general recommendation for sizing up or down. So, check the chart for the exact 511 version you have chosen. The Winter version may feel different due to the lining compared to the textile-lined basic model.
If you are between two sizes, send Naiselle.fi customer service your foot measurement in centimeters, your usual size, and information about the socks you use. This is a more reliable starting point than unisex labeling alone.
Are the M77 and 511 waterproof?
Naiselle.fi describes the leather of both basic models as water-repellent, not fully waterproof. Water-repellent leather withstands normal moisture better when the surface is clean and properly cared for. Seams, prolonged soaking, and care condition still affect how well the shoe keeps moisture out.
If you need a shoe for consistently wet conditions, look for a model whose product page lists a separate waterproof membrane or other model-specific waterproofing solution.
M77 or 511? Choose like this
| What matters most to you is… | Likely a better starting point | Why? |
|---|---|---|
| Very thick leather upper | M77 | Leather thickness is listed as 2.8–3.0 mm. |
| Multiple colors and patterns | 511 | The collection includes many colored and patterned versions. |
| Directly injected PU sole | M77 | This sole structure is listed both on the product page and in the manufacturer's catalog. |
| TR rubber sole | 511 Black | The basic model's outsole is listed as TR rubber. |
| Generous space for thick socks | M77 | The product page states the sizing is generous for this use. |
| Pre-warmed lining | Winter version | Compare the M77 Winter and 511 Winter models; the regular basic model should not be equated with the winter version. |
Care affects the wearing experience
Clean loose dirt with a soft brush or damp cloth, let the shoes dry at room temperature, and treat the leather with a care product suitable for its type. Do not assume the same product suits all leather types or colors. See detailed instructions in the leather shoe care guide.
Frequently asked questions about the M77 and 511 models
Is the M77 better than the 511?
Not generally. The M77 reliably offers a thicker leather upper and PU sole, while the 511 Black uses a TR rubber sole and the 511 series has more color and version options. The best choice depends on the features you need.
Is the 511 lighter than the M77?
Current Naiselle.fi product pages do not list comparable weights. Therefore, weight differences should not be promised without weighing the same size.
Which one fits wide feet better?
The product pages do not provide comparable width measurements. The M77 sizing is described as generous, but that alone does not guarantee a fit for wide feet. Measurements in centimeters and the specific size chart are a better starting point.
Are winter versions available for both?
Yes, Naiselle.fi's selection currently includes separate M77 Winter and 511 Winter products. Availability and sizes can be checked directly on the product pages.
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