BLUSUN 021M Suede Leather Boot Anthracite

The Blusun BLSN-021M in anthracite suede is a men's lace-up barefoot boot handcrafted in Portugal from premium, sustainably tanned Portuguese suede. Its breathable OnSteam® microfibre lining keeps feet dry and comfortable, while the flat, flexible zero-drop TPU sole lets your feet move the way nature intended.

Key Features

• Anatomical wide toe box: Gives your toes plenty of room to splay naturally for stable footing and healthy posture
• Premium Portuguese suede: Soft, sustainably tanned suede in anthracite, crafted for lightweight flexibility and everyday comfort
• Breathable OnSteam® microfibre lining: Regulates foot climate and wicks away moisture for all-day dry, comfortable wear
• Flat flexible TPU sole: 4mm base with a 2mm tread for excellent ground feel and reliable grip on wet surfaces
• Zero-drop construction: Completely flat from heel to toe to encourage upright posture and balanced spinal alignment
• Secure lace-up design: Classic lacing lets you adjust the fit precisely to your foot volume
• Ethical European craftsmanship: Handcrafted under fair conditions in a family-run workshop in Portugal

Specifications

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.

Men's Sizing

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.

Powered by the BarefootBrit Fit System™

• Men's EU Sizing: Available from EU 40 to EU 46 (UK 6.5 to UK 11).
• Fit Profile: Wide, foot-shaped anatomical toe box that allows your toes to splay naturally with zero compression.
• 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. Choose the size that comfortably accommodates your foot at its widest point.
• Pre-Order Note: This boot is on pre-order with estimated delivery in mid-October.

• Upper: Premium Portuguese sustainably tanned suede leather in anthracite
• Lining: Breathable OnSteam® microfibre
• Outsole: Flexible TPU sole (4mm base + 2mm tread), made in Portugal
• Fastening: Lace-up boot
• Drop: 0mm (True Zero-Drop)
• Origin: Handcrafted under fair conditions in a family-run Portuguese workshop

Cleaning: Remove dry dirt with a soft brush; wipe gently with a damp cloth without soap or detergents.

Drying: Allow boots to air dry naturally at room temperature away from direct heat sources.

Nap Care: Refresh the suede nap with a suede brush or crepe rubber as needed.

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 boots, Blusun uses certified European materials, German-engineered soles, and sustainable leathers to create barefoot footwear that never compromises on style or foot health.

Pre-Order Shipping: Estimated UK Hub Arrival: Mid-October 2026, followed by 1–3 day Royal Mail Tracked delivery. Free UK delivery on orders over £130.

Returns accepted within 30 days of receiving your boots — items must be unworn and in original packaging. Visit our Shipping and Returns page for full details.