Koel Robo 2.0 Merino Brown
Brand: Koel
Struggling to find an outdoor walking and trekking boot wide enough for extra-wide feet that doesn't trap you in a stiff, heavy mountain chassis?
The Koel Robo 2.0 Merino in Brown is a high-top barefoot trekking sneaker-boot handcrafted in Portugal on Koel's widest Trekking Men last (`35X`, 104-121mm wide). Built from water-repellent Hydro leather and suede with a protective rubber toe bumper, 100% Merino wool lining, and a 7.63mm zero-drop Trekking sole, it gives wide and extra-wide feet warmth, trail grip, and natural freedom.
Why choose Koel Robo 2.0 Merino Brown?- Extra-Wide Anatomical Trekking Last (`35X`): Engineered specifically for wide to extra-wide feet (111-119mm internal width across sizes 43-47 EU) so toes can spread and stabilise on uneven terrain.
- 100% Merino Wool Lining & Insole: Naturally thermoregulating, odour-resistant Merino wool interior and removable Merino footbed keep feet warm and dry on cold hikes.
- Water-Repellent Hydro Leather + Rubber Bumper: Hydrophobic leather and suede upper reinforced with an abrasion-resistant rubber toe cap and heel guard.
- 7.63mm Zero-Drop Trekking Outsole: Multi-directional lugged rubber sole offers dependable trail traction while remaining completely flat from heel to toe.
Robo 2.0 Merino is ideal for wide and extra-wide adult feet with medium to high instep volume. Speed-hook top lacing allows you to lock the heel securely on descents. If you plan to wear thicker hiking socks or sit between sizes, select the 10-12mm Roomy Fit recommendation in the BarefootBrit Fit System™ widget above. Read our foot measuring guide, take the Shoe Match Assessment, or browse extra-wide barefoot shoes, barefoot walking boots, and Koel footwear.
About KoelFounded in the Netherlands and handcrafted in Portugal, Koel combines generations of European shoemaking expertise with anatomical barefoot design. By pairing supple, chrome-free linings and responsibly sourced leathers with zero-drop, foot-shaped soles, Koel builds footwear that supports natural foot movement from childhood through adulthood.
Sizing & Fit
Built on Koel's Extra Wide Trekking Men last (35X). Internal dimensions: EU 43 (286 x 111mm), EU 44 (292 x 114mm), EU 45 (300 x 116mm), EU 46 (306 x 118mm), EU 47 (313 x 119mm). Ideal for wide and extra-wide feet.Materials & Care
Upper: Water-repellent Portuguese Hydro leather and suede with protective rubber toe and heel bumper. Lining: 100% natural Merino wool. Insole: Removable Merino wool footbed. Outsole: Stitched 7.63mm zero-drop Trekking rubber sole with multi-directional lugs. Fastening: Lace-up with metal speed hooks. Made in: Portugal.Brush off dry mud after walks and treat the Hydro leather and suede panels with a breathable waterproofing spray. Remove the Merino wool insoles to air naturally away from direct heat.About the Brand
Rooted in Dutch footwear design and 100% handcrafted in Portugal, Koel creates barefoot shoes and boots for children and adults using responsibly sourced European leathers, natural wool linings, and flexible zero-drop rubber soles. Every Koel last is shaped to respect natural toe splay without sacrificing durability or everyday European style.Product Specifications
- Zero Drop: Yes
- Toe Box Shape: Foot-shaped
- Flexibility: Medium
- Sole Thickness: 7.6mm
- Water Resistance: Water-resistant
- Removable Insole: Yes
Koel Robo 2.0 Merino Brown
Powered by the BarefootBrit Fit System™
Koel Robo 2.0 Merino (Trekking)
Enter your longest foot length and we'll recommend the best size for this specific shoe.
View Full Size Conversion Chart
| EU Size | UK Size | Internal length (cm) | Width (cm) |
|---|---|---|---|
| 40 | 6.5 | 26.5 | 10.4 |
| 41 | 7.5 | 27.2 | 10.6 |
| 42 | 8 | 27.8 | 10.9 |
| 43 | 9 | 28.6 | 11.1 |
| 44 | 9.5 | 29.2 | 11.4 |
| 45 | 10.5 | 30.0 | 11.6 |
| 46 | 11 | 30.6 | 11.8 |
| 47 | 12 | 31.3 | 11.9 |
| 48 | 13 | 32.0 | 12.1 |
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Description
Struggling to find an outdoor walking and trekking boot wide enough for extra-wide feet that doesn't trap you in a stiff, heavy mountain chassis?
The Koel Robo 2.0 Merino in Brown is a high-top barefoot trekking sneaker-boot handcrafted in Portugal on Koel's widest Trekking Men last (`35X`, 104-121mm wide). Built from water-repellent Hydro leather and suede with a protective rubber toe bumper, 100% Merino wool lining, and a 7.63mm zero-drop Trekking sole, it gives wide and extra-wide feet warmth, trail grip, and natural freedom.
Why choose Koel Robo 2.0 Merino Brown?
- Extra-Wide Anatomical Trekking Last (`35X`): Engineered specifically for wide to extra-wide feet (111-119mm internal width across sizes 43-47 EU) so toes can spread and stabilise on uneven terrain.
- 100% Merino Wool Lining & Insole: Naturally thermoregulating, odour-resistant Merino wool interior and removable Merino footbed keep feet warm and dry on cold hikes.
- Water-Repellent Hydro Leather + Rubber Bumper: Hydrophobic leather and suede upper reinforced with an abrasion-resistant rubber toe cap and heel guard.
- 7.63mm Zero-Drop Trekking Outsole: Multi-directional lugged rubber sole offers dependable trail traction while remaining completely flat from heel to toe.
Fit and sizing
Robo 2.0 Merino is ideal for wide and extra-wide adult feet with medium to high instep volume. Speed-hook top lacing allows you to lock the heel securely on descents. If you plan to wear thicker hiking socks or sit between sizes, select the 10-12mm Roomy Fit recommendation in the BarefootBrit Fit System™ widget above. Read our foot measuring guide, take the Shoe Match Assessment, or browse extra-wide barefoot shoes, barefoot walking boots, and Koel footwear.
About Koel
Founded in the Netherlands and handcrafted in Portugal, Koel combines generations of European shoemaking expertise with anatomical barefoot design. By pairing supple, chrome-free linings and responsibly sourced leathers with zero-drop, foot-shaped soles, Koel builds footwear that supports natural foot movement from childhood through adulthood.
Sizing & Fit
Materials & Care
Brush off dry mud after walks and treat the Hydro leather and suede panels with a breathable waterproofing spray. Remove the Merino wool insoles to air naturally away from direct heat.
About the Brand
Shipping & Returns
Free UK delivery on orders over £130. Standard delivery £4.99 (Royal Mail Tracked 48, 1–3 working days). Same-day dispatch on orders placed before 12 PM Mon-Sat.
Returns accepted within 30 days — items must be unworn and in original packaging. Visit our Shipping and Returns page for full details.
Need to return an item? Get in touch and we'll help you sort it out. Email us at hello@barefootbrit.shop with your order number and we'll guide you through the process.
Email Us to Arrange a ReturnNot Sure of Your Size? Start Here
Barefoot shoe sizing works differently from standard high-street brands. Measuring your feet in centimetres is the essential first step to getting the right fit.
The Wall & Paper Method
A simple 5-step process you can do at home with just a piece of paper, a pencil, and a ruler.
Room to Move
Adults need 0.8–1.2cm of space; kids need 0.8–1.5cm of growing room beyond their foot length.
Width Matters
Barefoot shoes have wide toe boxes, but width fitting is just as important as length for comfort.
Customer Reviews
So happy with the shoes they are wonderfully comfortable. Really helping my recovery from fractured metatarsal and ankle. Hope they will last a good while.
I highly recommend them.
Great, as advertised. Delivery was slow but worth the wait. Wish they were also available as no show socks.
These were bought as a gift for someone and they were absolutely thrilled when they arrived. Quality is great and very easy to put on. Delivery was within the timescale quoted at time of purchase. Overall, a very positive experience
Nice thicker material
Good roomy socks.
Barefoot Brit were brilliant from start to finish. They personally added my late order onto a preorder, kept me updated, packaged the shoes well and sent them in a timely manner as soon as they arrived in the UK. I also met the team at the barefoot expo in on Solihull, and what a lovely bunch of people they are!
I love Barefootbrit shop. They are always friendly and helpful. Love them. X
They are amazing. So soft and comfortable. They are so much nicer than commercial socks that have the stitching on the toe panel which makes them uncomfortable. Will always buy these.
I got paperkrane confetti trainers at the expo and they're great! Customer service was brill and knowledge of the products was great too. A great variety of products, shoes and accessories and UK based too so I will defo be looking again when I am after anything barefoot!
Best barefoot shoe collection
I love how helpful everyone is, how passionate about barefoot shoes and socks they are. Highly recommended and I'll be shopping again.
Aira Basics Barefoot socks are amazing, they are so comfortable you don't know you are wearing them. They have a lovely wide toe box and they don't dig into my legs. I love them and will be buying more!
Great!
Really cool and super comfy!
Very comfortable, I wasn't sure I would like the feeling of them but I don't notice them on and love the fact that they are not too tight around the top either.
Restore Your Feet While You Transition
Barefoot shoes give your feet room and ground feel. These training tools from The Foot Collective rebuild strength and mobility while your feet adapt: 2 minutes a day.
