Our Top Sock Doping Picks - Shop Now
This carousel displays a list of buttons that updates the main product image when a button is clicked
  • Options

CastelliUpf 50+ Light Knee Sleeves

$39.95

Item # CST00CK

Select options
  • Cancel
  • Select options
  • Black, S ($39.95)
  • Black, M ($39.95)
  • Black, L ($39.95)
  • Black, XL ($39.95)
  • 100% Guaranteed Returns
  • Free Shipping on orders over $50

Item # CST00CK
Description

Upf 50+ Light Knee Sleeves

Protect your pins from sunburn and airborne allergens in the Castelli UPF 50 Plus Light Knee Skins. Fashioned from breathable, polyester-based Solare fabric, these lightweight knee skins provide protective coverage without risk of overheating when things get fast. Double-sided silicone elastic at the hems keeps everything comfortably in place for a distraction-free ride.

  • Castelli knee sleeves for keeping out the rays
  • Laboratory tests claim a 99.8% blockage of damaging UV rays
  • Solare fabric keeps the chill off without causing overheating
  • Polyester based for excellent moisture management
  • Double-side silicone elastic at top for excellent grip
  • Construction eliminates seams that can rub, irritate, or cause friction
  • Fold up extremely small for stowing in your pockets

Tech Specs
MaterialSolare
Fitform fiting
UPF Rating50+
Recommended Usecycling
Manufacturer Warranty1 year
Size

Castelli

Arm & Knee Warmers
 

S

(Woman)

S

(Man)

MLXL
Rider Weight

99.2 - 132.3lb

(45 - 60kg)

99.2 - 132.3lb

(45 - 60kg)

132.3 - 154.3lb

(60 - 70kg)

154.3 - 176.4lb

(70 - 80kg)

176.4lb+

(80kg+)

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

What do you think about this product?

View

>Rating: 5

does its job

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
Medium
Height
5` 10"
Weight
150 lbs

stays in place, fits well, provides enough warmth, and protects the skin from the sun. it's perfect for those slightly chilly rides or when you're in between sun and cover. i would even consider wearing on a warm day to use for sun protection.

>Rating:

What’s the length of the sleeves?

>Rating: 5

Castelli Light Knee Skins

Familiarity:
I've put it through the wringer
Fit:
True to size

Great material, almost silk like. Does not retain heat. I do not notice them while riding. I had a bad knee replacement. The sleeve around my knee combined with CBD oil is a great help. Even in the heat of the summer the knee skins feel good. Highly recommended.

>Rating: 2

more like arm warmers ... super small

Fit:
Runs small
Size Bought
s
Height
5` 7"
Weight
127 lbs

too tight

>Rating: 5

Great for summer

Familiarity:
I've used it several times

I ride in the desert heat and sun and need serious protection. I got these in black. They are very light and cool to wear and true to size. I still use sunblock on my knees just in case, and the combo seems to work great. They stay in place and I barely notice them. I cut the inside logo tags off as they irritated my skin. Otherwise, they are perfect. They hold up in the wash. I'm going to order a second pair in white.

>Rating: 5

Castelli Knee Sleeves Keeping Me Cool!

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size

I just got these and the Pearl Izumi Sun Knees in the mail. These sleeves are VERY light weight and feel silky. I ordered the black in a small and they fit perfectly and did not slip at all on today's ride. The Pearl Izumi were heavier and the small was way too big. I live in Arizona where HOT is the name of the season from May to October. I have very long legs and finding shorts long enough for me is always a challenge and leaves me with lots of my upper legs exposed. Lately I have been getting a heat/sun rash and so I thought I would give these a try. I wore these this morning on a 30+ bike ride here in the AZ heat (temps topped out around 98 degrees). I found them to be comfortable and hardly even noticable and was surprised at how cool my legs felt. And I was so happy to NOT have any red bumpy rash at the end of the ride. Washing them now and will hang to dry. I do think these are definitely a winner. However, If things change, I will post it. JUNE UPDATE! Heat index is UP and these continue to keep me cool in 90+ degree temps. Truly a winner!!!

>Rating:

Is this a pair?

Hey Joel! These are sold in a pair.

yes

yes, two legs

No. Not everyone has two legs. You will need to order two. I only ordered one because I only need sun protection on my left leg. I'm ok with getting a terrible sum burn on the right leg. But not the left. That one is the money maker

>Rating: 5

So far, so good

Familiarity:
I've used it once or twice and have initial impressions

I've worn these ~2 times. It's been hot both days, but they didn't feel any hotter than riding without them. I was most worried about size. I'm 5'11", ~150lbs. My thighs are 21.5" around, my calves ~15". I'm a Large and they fit great. I wear about a 32/32 in pants. They've ridden down about 1 inch over the course of a 50 mile ride, but I think they'll be fine if I wear them under my shorts instead; they've got grippers on both sides, so they can be worn over or under shorts.

>Rating: 4

Pretty Good, But . . .

Familiarity:
I've used it once or twice and have initial impressions

The top band capably maintains the legging on the thigh without feeling too tight. The calf hem is very nice - no elastic, just a flat hem. I wore this product twice - once with the thigh band on top of my shorts and once underneath my shorts. Both ways worked well, but I did find having the band on top of the shorts was more comfortable. No issues with the leggings falling down. I was disappointed after 5 hours riding that my thighs still showed some sun irritation. When held to the light, the material does permit rather good see-through. The fabric is very soft. If you are someone like me who must be vigilant about sun exposure, these are good for cloudy days or short sunny day rides. I will keep looking for a denser knit material for longer sunny day rides. I have also read UPF-rated clothing only protects from UVB rays and not UVA rays - must wear sunscreen underneath UPF clothing to block both ray types.

It's true that UPF ratings are based solely on UVB protection, but that doesn't mean UPF-rated clothes provide no UVA protection. Clothes in general have been proven to have higher UVA/UVB protection ratios compared to the majority of broad-spectrum sunscreens.

>Rating: 4

Good Feel, Functional

Familiarity:
I returned this product before using it
Fit:
True to size
Size Bought
Large
Height
5` 10"
Weight
155 lbs

I tried these on after trying out a pair of Pearl Izumi sun protectors. The Castelli fabric felt softer. The Castelli fabric also felt cool on my skin. The Castelli also has a more functional silicone strip for the thigh area to keep them from slipping. The Castelli is lighter as well. Only gave them 4 stars because I noticed a seam starting to tear right out of the box. I'll fix it before it gets worse. I am 5'10 and weight 160. My thigh is 20 inches and my calf is 12 inches. I originally purchased a medium and they were too tight around the thigh. Put in an order for a Large the same day. Hoping they fit perfect.

>Rating:

Are there different UPF or cooling qualities between the black and white colors?

I only bought the black and they seem to be very cool even here in AZ.