Sidi Rex Air Motorcycle Boots Black/Bronze 191
Sidi Rex Air Motorcycle Boots Black/Bronze 191
Delivery time on request

To determine the correct shoe size: please measure the length of the foot in cm; starting from the heel to the big toe, as shown in the image.

Sidi Rex Air Motorcycle Boots Black/Bronze 191 – maximum ventilation, maximum protection
If you're looking for a racing boot that provides cool comfort even during intense summer rides, then the Sidi Rex Air Motorcycle Boots Black/Bronze 191 is exactly your model. This high-performance boot combines extreme breathability, uncompromising safety, and a custom racing fit, usually reserved for professional riders.
Breathability at Racing Level
The fully perforated upper material ensures constant air circulation – perfect for hot track days, long tours, and sporty rides. The integrated Air Ventilation System keeps your feet dry, cool, and ready to react.
Protection that Instills Confidence
The Rex Air was designed to optimally protect you even in extreme conditions:
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High-density TPU-Protectors for maximum impact absorption
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External fiberglass exoskeleton for controlled stability
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Asymmetrical heel and ankle reinforcement
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Replaceable shin plate & slider
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Side profile with slip control for secure footing
This safety concept comes directly from the professional realm – worn by Sidi factory riders.
Fit that Feels Tailored
With the patented dual-dial closure system, the boot can be adjusted with millimeter precision – regardless of shin shape or calf circumference.
➡ The boots fit perfectly and always provide stable support.
Comfort & Control on Every Ride
Thanks to the highly abrasion-resistant microfiber material and the stable-flexible construction, the Rex Air is suitable for both aggressive racing maneuvers and long tours.
You benefit from:
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precise feedback
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high freedom of movement
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secure footing and optimal power transfer
Sustainability Included
Sidi focuses on environmentally conscious production and supports the UN Sustainable Development Goals. In addition, the company pursues ambitious CO₂ reduction targets.
Product Highlights
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Color: Black/Bronze
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Model Number: 191
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Perforated upper material for maximum ventilation
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High-Density Dial closure system
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TPU-Protectors & fiberglass-reinforced structure
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Replaceable sliders & shin guards
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Racing-level safety & comfort
Conclusion: For those who won't compromise
The Sidi Rex Air motorcycle boots Black/Bronze 191 combine premium protection, racing performance, and extreme breathability – ideal for demanding sport riders who want to get the most out of every ride.
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About Us
About Us
Our passion for quality and innovation drives us to provide you with the best products and services for motorcycle enthusiasts. From exclusive high-performance parts to custom solutions – your riding experience is our priority.
Shipping & Returns
Shipping & Returns
We ship with DHL and FedEx – express shipping is available upon request. If an item is in stock, express shipping can often be done within 1 business day. The regular delivery time is approximately 2-5 business days nationally, and about 1 week internationally. Please check the available shipping options and times in the cart, as we offer multiple shipping providers depending on the country.
Returns must be registered in advance via email and are possible according to our cancellation policy (14 days return request + 14 days return period after approval). Please note: Unregistered returns will not be accepted. All details regarding conditions, exceptions, and refunds can be found in our cancellation policy.
Your payment information is processed securely. We do not store credit card data and do not have access to your credit card information.
More info in our FAQs
Write an email to our team – we will get back to you as soon as possible.
How long does it take to process my order?
How long does it take to process my order?
If the item is in stock, we usually process your order very quickly, often shipping it the same day.
Our processing times are Monday to Friday, 07:30–16:30.
Do you ship internationally?
Do you ship internationally?
Yes, we ship worldwide. Shipping is done via DHL or FedEx depending on the country and selection.
What is your return policy?
What is your return policy?
Returns must be registered in advance by email. You can request a return within 14 days of receipt and have an additional 14 days for the return shipment after approval.
Important: Unregistered returns will not be accepted. You can find all details in our cancellation policy.
What does 'Delivery time on request' mean?
What does 'Delivery time on request' mean?
'Delivery time on request' means that the item is usually not directly in stock and may need to be specially ordered. Please contact us before purchasing – we will check availability and provide you with the estimated delivery time.
Do you offer express shipping?
Do you offer express shipping?
Yes, we offer express shipping. If an item is in stock, shipping can often occur within 1 business day (depending on the country and shipping option). You can see the available shipping methods in the shopping cart.

