Sidi Nucleus Air CE Shoes Grey/Black
Sidi Nucleus Air CE Shoes Grey/Black
Sidi Nucleus Air CE Shoes Grey/Black
Sidi Nucleus Air CE Shoes Grey/Black
Sidi Nucleus Air CE Shoes Grey/Black

Sidi Nucleus Air CE Shoes Grey/Black

Sale price£179.99
Size:41
Colour:Grey

Pickup available at Huntscote Rd, Kingsditch Trade Park Usually ready in 1 hour

Sidi Nucleus Air CE Shoes Grey/Black

41 / Grey

Huntscote Rd, Kingsditch Trade Park

Pickup available, usually ready in 1 hour

Huntscote Road
Kingsditch Trading Estate
Cheltenham GL51 9NX
United Kingdom

+441242242273

Virtual Warehouse

Pickup available, usually ready in 2-4 days

Huntscote Road, Kingsditch Trading Estate
Cheltenham GL51 9NX
United Kingdom

Boots Size Guide

Measure Your Foot Length: Stand on a flat surface and measure from the tip of your longest toe to your heel for an accurate foot length.

Check Both Feet: If one foot is larger than the other, use the size based on the larger foot.

Consider Boot Fit: Some motorcycle boots are designed for a snug fit (especially performance boots), while others are more relaxed for comfort and touring.

Think About Socks: If you wear thick socks while riding, make sure to account for that in your sizing.

Boot Break-In: Leather and other materials will stretch and conform to your foot after a few wears, but always make sure they aren't too tight when first trying them on.

Men's Size Guide

EU Size UK Size US Men's Size Foot Length (cm) Foot Length (inches)
39 5.5 6 25 9.8
40 6.5 7 25.7 10.1
41 7.5 8 26.3 10.4
42 8 8.5 27 10.6
43 8.5 9 27.7 10.9
44 9.5 10 28.3 11.1
45 10.5 11 29 11.4
46 11.5 12 29.7 11.7
47 12 13 30.3 11.9
48 12.5 13.5 31 12.2
49 13 14 31.7 12.5

 

Women's Size Guide

EU Size UK Size US Women's Size Foot Length (cm) Foot Length (inches)
35 2.5 4 22.3 8.8
36 3 4.5 23 9
37 4 5.5 23.7 9.3
38 4.5 6.5 24.3 9.6
39 5.5 7 25 9.8
40 6.5 8 25.7 10.1
41 7.5 9 26.3 10.4
42 8 9.5 27 10.6

Boots Size Guide

Measure Your Foot Length: Stand on a flat surface and measure from the tip of your longest toe to your heel for an accurate foot length.

Check Both Feet: If one foot is larger than the other, use the size based on the larger foot.

Consider Boot Fit: Some motorcycle boots are designed for a snug fit (especially performance boots), while others are more relaxed for comfort and touring.

Think About Socks: If you wear thick socks while riding, make sure to account for that in your sizing.

Boot Break-In: Leather and other materials will stretch and conform to your foot after a few wears, but always make sure they aren't too tight when first trying them on.

Men's Size Guide

EU Size UK Size US Men's Size Foot Length (cm) Foot Length (inches)
39 5.5 6 25 9.8
40 6.5 7 25.7 10.1
41 7.5 8 26.3 10.4
42 8 8.5 27 10.6
43 8.5 9 27.7 10.9
44 9.5 10 28.3 11.1
45 10.5 11 29 11.4
46 11.5 12 29.7 11.7
47 12 13 30.3 11.9
48 12.5 13.5 31 12.2
49 13 14 31.7 12.5

 

Women's Size Guide

EU Size UK Size US Women's Size Foot Length (cm) Foot Length (inches)
35 2.5 4 22.3 8.8
36 3 4.5 23 9
37 4 5.5 23.7 9.3
38 4.5 6.5 24.3 9.6
39 5.5 7 25 9.8
40 6.5 8 25.7 10.1
41 7.5 9 26.3 10.4
42 8 9.5 27 10.6

Built for riders who want proper protection without cooking their feet, the Sidi Nucleus Air CE Shoes strike a smart balance between airflow, comfort and everyday usability. Whether you're commuting through town or heading out for a casual ride, these ventilated motorcycle shoes keep things cool while still delivering the safety you’d expect from Sidi.

The lightweight, high-tenacity upper is fully vented to maximise airflow, making them ideal for warmer conditions or stop-start urban riding. Underneath that breathable exterior sits a seriously capable setup, including D3O ankle protection and Sidi’s Fortex internal structure, giving you impact resistance and stability without turning the shoe into a brick.

Comfort hasn’t been overlooked either. The anatomical fit works well across a range of foot shapes, while the Materiis sole offers dependable grip both on and off the bike. So whether you're on the pegs or grabbing a coffee, they feel right at home.

Key Features

  • Fully ventilated upper for maximum airflow and all-day comfort
  • D3O ankle protectors for flexible, impact-reactive protection
  • Fortex internal structure for added stability without stiffness
  • Materiis sole delivering grip, durability and walkability
  • Extended lace closure system for a secure, dialled-in fit
  • Ergonomic anatomical design suited to a wide range of riders
  • CE-certified motorcycle footwear for added peace of mind

Why choose the Sidi Nucleus Air?

If you’re after a lightweight, breathable motorcycle shoe that still takes protection seriously, this is a solid shout. It’s got that everyday trainer feel, but with the hidden tech to back it up when it matters.

Ideal for commuting, city riding and those days when heavy boots just aren’t the one.

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