Castelli NanoFlex Knee Warmer

Castelli Clothing



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When the conditions are changeable, cycling knee warmers are your best friend on the road, offering much needed weather resistance and warmth right when it's needed, and the Castelli NanoFlex Knee Warmer is a great example in this genre.

Offering a wind resistant outer is pretty standard, but for the NanoFlex Knee Warmer, things get really interesting when it starts raining and its water repellent properties come into play. Whilst not full-on rain proof, they will repel showers, which on fast descents or long stretches far from home, can be a really handy feature. Smooth, stretchy and highly breathable, they are great in every ride condition. A silicon top gripper completes the warmer.

Product features
  • Wind resistant
  • Water resistant
  • Open Road
  • Water-resistant NanoFlex fabric
  • Warm, stretchy and breathable
  • Great in every possible ride condition
  • Silicon top gripper for a non-slip fit
  • 79g (pair)
Rider Reviews (1)
1 rider recently bought or want this item
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  • Giles Councell United Kingdom 10•06•2015
    Giles Councell United Kingdom 10•06•2015
    Keeps the knees toasty for those early mornings
    0 out of 0 riders found this review helpful.
Castelli apparel used to be very small, but over the last few seasons they have restructured their size set for a more international rider base, so the size, whilst still fitted, is not overly small. Therefore, please follow the sizing chart with confidence, but if in doubt, then feel free to go up a size.
chest 36-38" / 92cm 38-40" / 96cm 40-42" / 100cm 42-44" / 105cm 44-46" / 110cm
waist 31" / 80cm 33" / 84cm 34" / 88cm 36" / 93cm 38" / 98cm
inseam 31.8" / 81cm 32" / 82cm 32.7" / 83cm 33" / 84cm 34" / 85cm
short size S-M S-M L-XL 2XL-3XL
weight 45-60kg 60-70kg 70-80kg + 80kg
palm size 9.5cm 9.8cm 10cm 10.5cm 10.8cm
*For an accurate glove size, please measure across your flat open palm just below the fingers, then compare your measurement to the chart above. If it's a close call, go one size up or down depending on the result.

shoe size (Euro) 35-39 40-43 44-47
Shoe Covers S M L XL XXL
shoe size (Euro) 39-40 41-42 43-44 45-46 47-48

Where is my order sent from?

All orders are sent from our HQ in Hampton (near London!) & despatched the same day (Mon-Fri) if in stock and ordered before 3pm UK time. That's just how we like to roll.

Delivery Options

 Royal MailExpress
UK 48 hr / £3.00 24 hr (Mon-Fri) / £6.60  
N. AMERICA AirMail from $16 Express from $16
EUROPE   Express from €8
AUSTRALIA / NZ AirMail from $23 Express from $35
JAPAN AirMail from ¥2000 Express from ¥3600
REST OF WORLD 6 - 18 / from £10 Express from £19

Free delivery for orders over £60

All UK orders will receive free Royal Mail Tracked 48 hour delivery with only a £60 minimum spend. Next working day DPD delivery is also available with orders over £250.

N.Ireland & Scottish Highlands

Customers in the Highlands and Northern Ireland will be offered a next day service with Royal Mail on checkout, rather than DPD.

Free UK Returns

Returns are really simple. We include a free returns postal label and order slip inside every shipment, so if you would like to return something to us to us, check off the item(s) to be returned on the slip, peel the shipping label, stick it to the exterior, then take the parcel to your nearest Post Office, or simply include it in your daily postal pick up from work.

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