NB Extreme Slip | BioThane® Adjustable Slip Collar | CUSTOM
Configure your dog collar according to your wishes.
Special requests? Contact us before ordering – together we'll see what's possible.
The NB Extreme Slip combines the robust construction of our Extreme collar with the function of an adjustable martingale collar.
Instead of a classic buckle, it features a high-quality, glossy black stainless steel chain. The slip function can be infinitely adjusted, so the collar only tightens to the set width when pulled.
Made from original BioThane®, it is waterproof, particularly robust, hygienic, and easy to clean. You can customize your collar with various colors, splatters, and embroidery options.
The NB Extreme Slip is available in two widths:
The 25mm variant has a total width of approx. 28–30 mm including the outer band and is available with a black or silver stainless steel chain.
The 40mm variant has a total width of approx. 43–45 mm including the outer band and is only available with a silver stainless steel chain.
Please pay attention to the size specifications to ensure the collar fits correctly.
HIGHLIGHTS
✅ Infinitely adjustable slip function
✅ Glossy black stainless steel chain or robust silver
✅ Chain breaking load: approx. 300 kg for the 25mm variant
✅ Chain breaking load: approx. 500 kg for the 40mm variant
✅ Waterproof and easy to clean
✅ Robust and suitable for all weather conditions
✅ Individually customizable with colors, splatters, and embroidery
✅ Optional outer band for more width and comfortable wear
HOW TO MEASURE CORRECTLY
To ensure the collar does not slip over your dog's head when pulled, measure the circumference of your dog directly behind the ears. Additionally, you need the circumference at the widest part of the head, so the collar can be comfortably slipped on when loose.
A detailed measuring guide can be found here.
Example:
Circumference behind the ears: 45 cm
Widest part of the head: 47 cm
Normal neck circumference: 46 cm
In this case, we recommend Size S. The smallest setting is 42 cm, so the collar can be adjusted to fit and sit securely behind the ears when pulled. At the same time, it can be opened wide enough to be comfortably slipped over the head.
🔔 Note: The black metal elements are coated. Visible wear may occur during use and is not entirely avoidable.
Color variations may occur depending on the screen, light, and environment.
Please note: This item is custom-made according to your wishes and is therefore excluded from exchange and return.
INDIVIDUAL OUTER BAND – YOUR STYLE, YOUR COLLAR
Make your Extreme Collar truly special ✨
You can now optionally choose an outer band – not only reflective, but also available in various colours.
The outer band is made from a high-quality fabric and not only provides an individual look but also offers real added value:
Especially for dogs with more sensitive necks, it ensures a much more comfortable wearing experience.
✔ More comfort for your dog
✔ Individual colour design
✔ Your collar becomes truly unique
Turning functional into personal 🐾
Personalization
Only with us can you have your BioThane® collar embroidered – exclusively on the "Aqua Extreme" collar.
Unless otherwise agreed, the embroidery will be placed in the center.
Do you have questions, are unsure, or would you like a different font? Feel free to contact us in advance.
Other fonts are possible, but only with the 4 cm variant.
ENGRAVING
Engraving is, of course, still possible.
Fixed designs can be found here.
This product is custom-made for you. Delivery time is 3-6 weeks.
CARE INSTRUCTIONS
The collar can be easily cleaned under clear water or with a little soap to remove mud, dirt, or other grime. Afterwards, simply dry it with a towel and the collar is ready for its next use.
The metal elements are rose gold. Wear and tear is normal over time.
COLOR INFORMATION
Even though we strive to display our colors as accurately as possible, the colors may differ from the online presentation depending on the screen or lighting conditions.
FAQs
Of course – unless it has been personalised or custom-made for you.
If your collar is not custom-made, unpersonalised and unused, you can return it within the usual period.
If the collar has an engraving or special request, an exchange is unfortunately not possible.
If you are unsure about the size or width: Simply contact us – we will be happy to help you before you place your order.
To prevent the collar from slipping over the head when pulled, measure the circumference directly behind the ears. Additionally, we need the circumference at the widest part of the head so that the collar can be comfortably slipped on.
Example:
Circumference behind the ears: 45 cm
Widest part of the head: 47 cm
Normal neck circumference: 46 cm
In this case, we recommend size S. The smallest setting is 42 cm, so the collar sits securely behind the ears and can also be opened wide enough to be comfortably pulled over the head.
You can find detailed measuring instructions here:
https://nature-bark.de/pages/messanleitung-naturebark
The designations S, M, L, etc. refer to the respective base size of the collar. However, due to the slip chain and the adjustment option, the NB Extreme Slip has a different adjustable circumference.
Therefore, you should not only choose by the size designation but always pay attention to the indicated circumference.
Example: M (42–57 cm)
The collar can be adjusted to a circumference between 42 and 57 cm. The larger the base size, the larger the adjustment range typically is.
If you are unsure, please write to us and tell us your dog's neck circumference and the circumference at the widest part of its head.
YES!
However, due to the Velcro, you should ensure that your collar dries well before its next use.
That is absolutely understandable. Depending on its width, BioThane® naturally has a certain intrinsic weight. However, the slip collar version is approximately 20g lighter compared to our classic NB Extreme with a buckle – this difference is particularly noticeable in the wider version.
Of course, a BioThane® collar with high-quality metal elements cannot be compared to a light fabric collar with a plastic clasp. However, precisely this combination of materials ensures that the collar is particularly stable and durable.
The NB Extreme Slip is based on our NB Extreme collar. This is why our patented Velcro adjustment mechanism is also used here.
This is not conventional Velcro, but a particularly soft and durable special Velcro from the climbing sector.
When adjusting, make sure that the rough side of the Velcro is fully engaged. This is the only way the collar can hold securely and not readjust itself even with stronger pulling.
The classic NB Extreme features a quick-release buckle and a D-ring.
With the NB Extreme Slip, these are replaced by a pull-through chain. This allows it to function as a martingale collar and be put on and taken off over the head.
Yes and no. We want to be completely transparent here: No everyday object is completely indestructible. Therefore, with very heavy use or after many years, it can theoretically happen that individual areas come loose.
The splatter design is applied with a special paint, then sealed and additionally impregnated. This means the surface is particularly well protected, feels pleasantly soft, and water beads off better. So far, we ourselves have not observed any detachments.
Please do not clean the collar with hard brushes or aggressive cleaning agents. Lukewarm water and, if necessary, a little mild soap are usually sufficient.
Yes. The black version is not powder-coated but anodized using a classic chemical process. Due to strong and constant friction with the pull chain, the black surface can still wear down over time. However, with normal daily use, it holds up very well.
If you want to avoid visible wear and tear, the silver version is an excellent choice. Naturally, the screws are also made in silver for this version.
Like our NB Extreme collars, the slip variant also impresses with its high durability.
The chains are made of high-quality stainless steel. The breaking load for the 25mm variant is approx. 300 kg and for the 40mm variant approx. 500 kg.
The narrow variant has also been extensively tested on various breeds such as Huskies, herding dogs, and German Shepherds, and easily withstands dogs up to approx. 40 kg.
The choice primarily depends on the intended use, your dog's size, and their behavior on the leash.
For small to medium-sized dogs, relaxed walks, and dogs that rarely pull, the 25-mm version is very suitable.
For larger dogs weighing approx. 35 kg or more, or dogs that pull strongly or lunge on the leash when encountering others, we recommend the 40-mm version. Not only because of its higher load capacity, but especially because the wider strap distributes pressure more effectively.
If you are unsure, please feel free to contact us via the contact form. Ideally, tell us your dog's neck circumference, weight, intended use, and whether your dog frequently pulls on the leash. This way, we can advise you best.
No, don't worry! The rougher part of the hook and loop fastener is only used for size adjustment and does not come into contact with your dog's neck.
The area that touches the neck consists of the soft part of the hook and loop fastener– a particularly high-quality industrial hook and loop fastener that is durable, flexible, and comfortable on the skin. It has no sharp edges and is designed to lie softly and comfortably on the neck even when moving.
This is currently due to availability with our manufacturer. The wide stainless steel pull-through chain is currently only available in silver. We can only offer a black version for the narrow variant.