Sidi Crossair HD Motorcycle Boots White/Pink 057, three-quarter view 360° — drag me
1,700 g
02 · Data & docs

The facts.

Technical data
BrandSidi
ModelCrossair HD
Model number057
ColourWhite/Pink
Upper materialHard-enduro engineered microfibre
ProtectionFront, side & toe protectors; thermoplastic toe defender; 3-point anti-hyperextension; fibreglass exoskeleton; anatomic heel cup
Closure systemVelcro + micro-adjustable replaceable buckles
Weight1,700 g (size 43)
SoleHard-enduro-specific sole (trial-derived, stitched)
DescriptionThe whole story

The Sidi Crossair HD motorcycle boots in white/pink set the bar higher. Developed and raced by professional hard-enduro rider Billy Bolt, the Crossair HD is the world's first boot designed and built specifically for hard-enduro and super-enduro. It delivers all the solidity of a premium Sidi boot at just 1,700 grams (size 43) — far lighter than anything else — thanks to an internal fibreglass-reinforced exoskeleton that provides full support and safety in an incredibly light construction.

Key Features

  • Internal fibreglass exoskeleton delivers pro-level support and safety at a class-leading 1,700 g (size 43)
  • Unique 3-point anti-hyperextension system supports the leg while preventing dangerous movement
  • Hard-enduro engineered microfibre with protectors on the front, side and toe, plus a thermoplastic defender toe area
  • Velcro closure with a micro-adjustable, replaceable buckle system for a solid, individually fitted hold
  • Anatomic heel cup, replaceable metatarsus insets and a hinge system for protection and freedom of movement
  • Hard-enduro-specific sole — derived from Sidi trial boots and stitched directly to the upper — for unparalleled grip

The Lightest Pro Boot in the World

How do you build the lightest pro boot ever? Around an internal fibreglass exoskeleton that offers the safety and support extreme riding demands in a lightweight structure. Nothing else delivers the same riding experience: all the support and protection racing requires, without the burden of weight.

Protected from Dangerous Movements

The incorporated 3-point anti-hyperextension structure supports the entire length of the boot while preventing excessive, dangerous degrees of movement — so the rider stays in control and free to move. Combined with the hinge system and anatomic heel cup, it protects without ever feeling restrictive.

Trial-Derived Grip and Bike Feel

What makes the Crossair HD truly special is a sole whose design and composition are derived from trial boots: lightweight, protective and grippy both on the footpegs and in contact with any terrain hard enduro throws at you. An ultra-sleek inner panel brings you closer to the bike for greater contact and feel — the perfect fusion of Billy Bolt's style and Sidi manufacturing expertise.

Fit and Sizing

The Sidi Crossair HD is offered in a regular fit across EU sizes 39–50. If you ride in thicker socks or sit between sizes, we recommend sizing up. Consult the Sidi size chart before ordering to confirm the best fit.

Specifications

Brand Sidi
Model Crossair HD
Model number 057
Colour White/Pink
Type Hard-enduro / super-enduro boot
Signature Billy Bolt
Upper material Hard-enduro engineered microfibre
Protection Front, side & toe protectors; thermoplastic toe defender; 3-point anti-hyperextension; fibreglass exoskeleton; anatomic heel cup
Closure system Velcro + micro-adjustable replaceable buckles
Weight 1,700 g (size 43)
Sole Hard-enduro-specific sole (trial-derived, stitched)
Replaceable components Buckles, metatarsus insets
Fit Regular
Intended use Hard enduro & super enduro
Available sizes 39–50
06 · Complete the look

Head to toe.

Auto-matched to this helmet's sector — Racing
Head to toeAuto-filled from the Racing sector
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07 · Support

Questions, one topic at a time.

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How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

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Didn’t find your answer?

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08 · Paddock

Before you go.

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