• There are no items in your basket

Castelli Nanoflex Cycling Knee Warmers - Black


Out of Stock
View Size Guide
Castelli Women's Clothing Size Guide
Chest (cm) 79 84 89 94 99
Waist (cm) 63 68 73 78 83
Hips (cm) 87 92 97 102 107
Inseam (cm) 75 76 77 78 79


Castelli Shoe Cover Size Guide
  S M L XL 2XL
Men's/Women's EU Size 39-40 41-42 43-44 45-46 47-48


Castelli Women's Socks Size Guide
  S/M L/XL
Women's Shoe Size (EU) 35-38 39-41


Castelli Gloves Size Guide
Men/Women <17cm 17-20cm 20-23cm 23-25cm 25-27cm >27cm


Castelli's Nanoflex knee warmers are a testament to the brand's position as an innovative market-leader. Crafted from intelligent Nanoflex fabric, these cycling knee warmers bear all the cooling properties of a Thermoflex fabric in dry conditions to ensure you remain fresh and ventilated, yet when it begins to rain the NanoFlex fabric transforms to show its excellent hydrophobic qualities and repels water to keep you cool and dry. Double-sided silicone grippers keep these cycling essentials in place throughout your journey and the knee warmers are finished with ankle zips and the signature Castelli branding to the lower leg. - L.R.


  • Castelli Nanoflex black knee warmers
  • Made from water-resistant Nanoflex fabric
  • Improved UV protection
  • Same breathability, stretch and warmth as Thermoflex warmers
  • Double-sided silicone grippers above the knee keep the warmers in place
  • Great in every possible condition
  • Weight: 164g (pair)

Product Details

  • Nanoflex
  • Nanoflex
  • Castelli
  • Black

Delivery & Returns

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: Sold out

Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.

How will I know it has been sent?

You will receive an email to confirm when your item has been sent.

You can also check the status of your order and individual items by accessing My Account details and following the prompts.

Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.

Email To A Friend

  • No more then 1000 characters long please.

Customer Reviews

Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.




(3 Reviews)

  • 5    3
  • 4    0
  • 3    0
  • 2    0
  • 1    0

Write a review to be in with a chance of winning a £100 voucher to spend on ProBikeKit.

Sort By

Great fit

Total :


Lightning fast delivery as usual from PBK. Great product - not tried in wet yet, but size and fit is excellent. I'm 180cm and 82kg and L is perfect.

Tue Jun 09 21:28:58 BST 2015 by

Castelli Nanoflex Kneewarmers

Total :


Very comfortable, excellent at keeping the wind off and the nanoflex material is great in light showers. Not tested in a heavy downpour but I have the nanoflex arm warmers and these are also very good.

Thu Nov 14 14:51:51 GMT 2013 by

Nanoflex in general

Total :


Nanoflex in general is excellent I have the arm warmers and the knee warmers and the bib tights. All exceptional garments with water proofing

Tue Oct 15 12:38:36 BST 2013 by

Castelli Nanoflex Cycling Knee Warmers - Black

Select image

Castelli Nanoflex Cycling Knee Warmers - Black