BLUSUN 400W Slouch Suede Boot Black
Brand: Blusun
The Blusun BLSN-400W is a cozy, elegant women's barefoot slouch boot engineered for cold, wet autumn and winter conditions in versatile deep black. Handcrafted in a family-run workshop in Portugal, it combines premium German hydrophobic suede leather with a warm, 100% recycled mulesing-free wool lining and lightweight PrimaLoft® insulation. Featuring a relaxed pull-on slouch silhouette with an inner side zip, it delivers dependable weather protection, thermal comfort, and complete barefoot freedom for city and country wear.
Key Features- Anatomical wide toe box: Gives your toes generous room to spread and splay naturally, promoting balanced posture and healthy foot mechanics
- Hydrophobic German suede leather: Premium water-repellent suede in deep black, engineered to shed rain, mud, and puddle splashes without stiff synthetic coatings
- 100% Recycled wool lining & PrimaLoft® insulation: Cozy, breathable, and mulesing-free EU wool combined with PrimaLoft® insulation keeps feet reliably warm without bulk or overheating
- Flat flexible TPU sole: 4mm midsole paired with a 1mm tread delivers authentic ground feedback, natural flexibility, and non-slip traction on wet autumn paths
- Zero-drop construction: Completely flat from heel to toe to support neutral spine alignment and natural posture
- Effortless slouch silhouette with zip: Relaxed slouch shaft with a discreet inner side zip for easy on-and-off, pairing effortlessly with trousers, leggings, or winter outfits
- Ethical European craftsmanship: Handcrafted under fair working conditions in a family-run Portuguese workshop
| Feature | Specification |
| Upper | Hydrophobic water-repellent suede leather (German origin, deep black) |
| Lining | 100% recycled EU wool (mulesing-free) |
| Insulation | Lightweight PrimaLoft® thermal insulation |
| Outsole | Flexible TPU sole (4mm midsole + 1mm tread) |
| Fastening | Pull-on slouch boot with inner side zip |
| Drop | 0mm (zero-drop) |
| Origin | Handcrafted in Portugal |
| Care | Remove dirt with warm water and a soft brush; let air dry naturally away from direct heat, then brush gently with a suede brush. Do not use soap. Water-repellent spray can be applied after drying |
Powered by the BarefootBrit Fit System™
Measure your foot length and width in millimetres and compare with the internal shoe measurements below. As a general recommendation, we suggest adding 10-12mm of comfort room to your foot length for the ideal barefoot fit.
Women's Sizing| EU | UK | Inner Length (mm) | Inner Width (mm) |
| 36 | 3 | 237 | 89 |
| 37 | 4 | 244 | 90 |
| 38 | 5 | 251 | 92 |
| 39 | 6 | 258 | 93 |
| 40 | 6.5 | 264 | 95 |
| 41 | 7.5 | 271 | 97 |
| 42 | 8 | 278 | 101 |
| 43 | 9 | 283 | 103 |
Blusun lasts are shaped to adapt to your foot's natural volume in both length and width. Choose the size that comfortably accommodates your foot at its widest point.
Sizing & Fit
Powered by the BarefootBrit Fit System™
- Women's EU Sizing: Available from EU 36 to EU 43 (UK 3 to UK 9).
- Fit Profile: Good for medium-width feet, with a foot-shaped toe box for natural toe movement.
- Sizing Recommendations: Measure your foot length and width in millimetres. We recommend adding 10-12mm to your foot length for the ideal barefoot fit as a general recommendation.
- Volume & Last: Blusun lasts are shaped to adapt naturally to your foot's volume in both length and width. The slouch shaft provides comfortable volume accommodation around the ankle and lower calf.
Materials & Care
- Upper: Hydrophobic water-repellent suede leather (German origin, deep black)
- Lining: 100% recycled EU wool (mulesing-free) for cozy, breathable thermal comfort
- Insulation: Lightweight, water-repellent PrimaLoft® insulation
- Outsole: Flat, flexible TPU sole (4mm base + 1mm tread for reliable ground grip), made in Portugal
- Fastening: Slouch pull-on design with inner side zip for easy on/off
- Drop: 0mm (True Zero-Drop)
- Origin: Handcrafted under fair conditions in a family-run Portuguese workshop
Pre-Treated Leather: The boot arrives pre-treated with a hydrophobic finish from the factory.
Cleaning: Remove dirt and mud using warm water and a soft brush. Let the boots air dry naturally away from direct heat sources, then brush gently with a suede brush to restore the nap.
Important: Do not use soap, as soap dissolves the leather's hydrophobic oil treatment. Waterproofing spray can be reapplied periodically after cleaning once dry.
About the Brand
Blusun is a Portuguese barefoot footwear brand crafting premium minimalist shoes with a commitment to natural movement, sustainability, and ethical European production. Handcrafted in a family-run workshop in Portugal under fair conditions, every pair features a true zero-drop sole, wide anatomical toe box, and highly flexible construction - designed to give your feet complete freedom to move naturally.
From everyday sneakers to water-repellent suede boots, Blusun uses certified European materials, German-engineered soles, and sustainable leathers to create barefoot footwear that never compromises on style or foot health.
Product Specifications
- Zero Drop: Yes
- Toe Box Shape: Foot-shaped
- Flexibility: High
- Sole Thickness: 5.0mm
- Water Resistance: Water-resistant
BLUSUN 400W Slouch Suede Boot Black
Powered by the BarefootBrit Fit System™
Blusun Boot
Good for medium-width feet
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 | Insole (cm) | Width (cm) |
|---|---|---|---|
| 36 | 3 | 23.7 | 8.9 |
| 37 | 4 | 24.4 | 9.0 |
| 38 | 5 | 25.1 | 9.2 |
| 39 | 6 | 25.8 | 9.3 |
| 40 | 6.5 | 26.4 | 9.5 |
| 41 | 7.5 | 27.1 | 9.7 |
| 42 | 8 | 27.8 | 10.1 |
| 43 | 9 | 28.3 | 10.3 |
Description
The Blusun BLSN-400W is a cozy, elegant women's barefoot slouch boot engineered for cold, wet autumn and winter conditions in versatile deep black. Handcrafted in a family-run workshop in Portugal, it combines premium German hydrophobic suede leather with a warm, 100% recycled mulesing-free wool lining and lightweight PrimaLoft® insulation. Featuring a relaxed pull-on slouch silhouette with an inner side zip, it delivers dependable weather protection, thermal comfort, and complete barefoot freedom for city and country wear.
Key Features
- Anatomical wide toe box: Gives your toes generous room to spread and splay naturally, promoting balanced posture and healthy foot mechanics
- Hydrophobic German suede leather: Premium water-repellent suede in deep black, engineered to shed rain, mud, and puddle splashes without stiff synthetic coatings
- 100% Recycled wool lining & PrimaLoft® insulation: Cozy, breathable, and mulesing-free EU wool combined with PrimaLoft® insulation keeps feet reliably warm without bulk or overheating
- Flat flexible TPU sole: 4mm midsole paired with a 1mm tread delivers authentic ground feedback, natural flexibility, and non-slip traction on wet autumn paths
- Zero-drop construction: Completely flat from heel to toe to support neutral spine alignment and natural posture
- Effortless slouch silhouette with zip: Relaxed slouch shaft with a discreet inner side zip for easy on-and-off, pairing effortlessly with trousers, leggings, or winter outfits
- Ethical European craftsmanship: Handcrafted under fair working conditions in a family-run Portuguese workshop
Specifications
| Feature | Specification |
| Upper | Hydrophobic water-repellent suede leather (German origin, deep black) |
| Lining | 100% recycled EU wool (mulesing-free) |
| Insulation | Lightweight PrimaLoft® thermal insulation |
| Outsole | Flexible TPU sole (4mm midsole + 1mm tread) |
| Fastening | Pull-on slouch boot with inner side zip |
| Drop | 0mm (zero-drop) |
| Origin | Handcrafted in Portugal |
| Care | Remove dirt with warm water and a soft brush; let air dry naturally away from direct heat, then brush gently with a suede brush. Do not use soap. Water-repellent spray can be applied after drying |
Size Guide
Powered by the BarefootBrit Fit System™
Measure your foot length and width in millimetres and compare with the internal shoe measurements below. As a general recommendation, we suggest adding 10-12mm of comfort room to your foot length for the ideal barefoot fit.
Women's Sizing
| EU | UK | Inner Length (mm) | Inner Width (mm) |
| 36 | 3 | 237 | 89 |
| 37 | 4 | 244 | 90 |
| 38 | 5 | 251 | 92 |
| 39 | 6 | 258 | 93 |
| 40 | 6.5 | 264 | 95 |
| 41 | 7.5 | 271 | 97 |
| 42 | 8 | 278 | 101 |
| 43 | 9 | 283 | 103 |
Blusun lasts are shaped to adapt to your foot's natural volume in both length and width. Choose the size that comfortably accommodates your foot at its widest point.
Sizing & Fit
Powered by the BarefootBrit Fit System™
- Women's EU Sizing: Available from EU 36 to EU 43 (UK 3 to UK 9).
- Fit Profile: Good for medium-width feet, with a foot-shaped toe box for natural toe movement.
- Sizing Recommendations: Measure your foot length and width in millimetres. We recommend adding 10-12mm to your foot length for the ideal barefoot fit as a general recommendation.
- Volume & Last: Blusun lasts are shaped to adapt naturally to your foot's volume in both length and width. The slouch shaft provides comfortable volume accommodation around the ankle and lower calf.
Materials & Care
- Upper: Hydrophobic water-repellent suede leather (German origin, deep black)
- Lining: 100% recycled EU wool (mulesing-free) for cozy, breathable thermal comfort
- Insulation: Lightweight, water-repellent PrimaLoft® insulation
- Outsole: Flat, flexible TPU sole (4mm base + 1mm tread for reliable ground grip), made in Portugal
- Fastening: Slouch pull-on design with inner side zip for easy on/off
- Drop: 0mm (True Zero-Drop)
- Origin: Handcrafted under fair conditions in a family-run Portuguese workshop
Pre-Treated Leather: The boot arrives pre-treated with a hydrophobic finish from the factory.
Cleaning: Remove dirt and mud using warm water and a soft brush. Let the boots air dry naturally away from direct heat sources, then brush gently with a suede brush to restore the nap.
Important: Do not use soap, as soap dissolves the leather's hydrophobic oil treatment. Waterproofing spray can be reapplied periodically after cleaning once dry.
About the Brand
Blusun is a Portuguese barefoot footwear brand crafting premium minimalist shoes with a commitment to natural movement, sustainability, and ethical European production. Handcrafted in a family-run workshop in Portugal under fair conditions, every pair features a true zero-drop sole, wide anatomical toe box, and highly flexible construction - designed to give your feet complete freedom to move naturally.
From everyday sneakers to water-repellent suede boots, Blusun uses certified European materials, German-engineered soles, and sustainable leathers to create barefoot footwear that never compromises on style or foot health.
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.
