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Castelli Thermoflex Knee Warmers

Temporarily Out Of Stock

Item # CST007Z

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Description

Warm knees, fast rides.

Believe it or not, your knees can get cold, so Castelli designed the Thermoflex Knee Warmers to protect them when you're slicing through chilly conditions. The microfleece lining makes the Thermoflex the warmest knee sleeves that Castelli offers, and the upper silicone gripper keeps them from sliding down and cramping your pedaling style.

Tech Specs

Material:
Thermoflex
Recommended Use:
cycling
Manufacturer Warranty:
1 year

Size Chart

Castelli

Arm & Knee Warmers
 SMLXL
Rider Weight

99.2 - 132.3lb

(45 - 60kg)

132.3 - 154.3lb

(60 - 70kg)

154.3 - 176.4lb

(70 - 80kg)

176.4lb+

(80kg+)

Short Size XS - M S - M L - XL 2XL - 3XL
Short Size:
Take your typical cycling short or bib sizing for comparison.

Reviews & Community

REVIEWS

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Keeps my knees warm

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Large

These are great for cold spring or fall rides. The thermoflex is great for keeping the elements out. I had no problem with them sagging or moving while I'm out riding.

Avg. ride time: 2h per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Oh, just fine

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: medium

These leg warmers are comfortable fabric, and insulate really well.

My one gripe is the thin, tight band up top. Yes, they should stay up, but it binds uncomfortably. I ended up cutting the elastic and doing a little DIY band up top.

Avg. ride time: 3h 39m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

so large

  • Familiarity: I've used it several times
  • Fit: Runs large
  • Size Bought: Medium

Very large for me. I have to cut them.

Avg. ride time: 4m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

knees and toes

  • Familiarity: I've used it several times
  • Fit: True to size

Keeps you knees warm, and maintains support and some extra protection! Gotta love that! They're tight where they need to be and not so much that it is uncomfortable while you ride. super thing and yet surprisingly adds lots of warmth while riding....

Avg. ride time: 7h 16m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

does the job

  • Familiarity: I've put it through the wringer
  • Fit: Runs small
  • Size Bought: small

These warmers ride up from the calf and get bunched right after the knee area. I have tried different sized but this always seems to happen with the thermoflex warmers. They work well in weather from 45-60

Unanswered Question

I bought a size that is too large and missed the return window. Could I put these in the drier and try to shrink them?

What I wanted

  • Familiarity: I've used it several times

These knee warmers are exactly what you'd expect. They are comfortable, well-fitting and warm, with nice fleece lining inside. They have decent grippers around the thigh which prevent them slipping and i think they are good value for money. They are lighter than the Nanoflex ones and not quite so tight-fitting, but they still keep my legs warm even in low single digit degrees - It will probably have to get nearer 0-celcius before i need to switch to full thermal bib tights.