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Castelli Arm Sleeves UPF 50 + Light White

Brand: Castelli

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SM MD LG XL XXL

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Product Details

Description

SURPRISINGLY USEFUL. We can officially only rate these warmers at UPF 50+, but in our laboratory tests they actually blocked 99.8 percent of damaging UV rays. We used a polyester base that is not only more effective than nylon at blocking UV rays but is also much better at keeping you dry, which means these arm sleeves are better in both cooler and warmer conditions. We’ve kept the construction very clean to eliminate seams that can rub, and we used our double-sided silicone elastic to make sure they stay in place. They fold up extremely small, so they’re great to stick in your pockets for your next big mountain day.

Key Features

UPF 50+ sun protection
Lightweight and breathable fabric
Ergonomic fit for comfort
Moisture-wicking technology
Reflective details for visibility

Specifications

Product Overview

Product

Castelli Arm Sleeves UPF 50 + Light White

Brand

Castelli

Parent SKU

54KFWIAN

Size SKUs

SM: CLCA6036001-S
MD: CLCA6036001-M
LG: CLCA6036001-L
XL: CLCA6036001-XL
XXL: CLCA6036001-2XL

Matrix Barcodes

SM: 8055688216603
MD: 8055688216610
LG: 8055688216627
XL: 8055688216634
XXL:

Frequently Asked Questions

What is the Castelli UPF 50+ Arm Sleeves used for?

They provide UPF 50+ sun protection for your arms during outdoor activities, while staying lightweight and breathable for all-day comfort.

Why choose the Castelli UPF 50+ Arm Sleeves?

Because they combine effective UV blocking (lab-tested near 100% protection) with a clean, seam-free construction, moisture-wicking performance, and a stay-in-place fit.

Who is the Castelli UPF 50+ Arm Sleeves designed for?

Athletes and outdoor enthusiasts who want reliable sun protection, cool comfort, and easy packing for rides, runs, or hikes.

All-Day UV Defense

UPF 50+ protection blocks damaging rays, keeping you covered on sunny rides and workouts. Ultra-lightweight fabric stays breathable and comfortable.

Ergonomic Comfort Fit

Designed to move with you with a seamless, snug fit that reduces chafing. Moisture-wicking technology helps you stay dry.

Compact, Visible & Ready

Folds down small for pockets and includes reflective details for added safety in low light.

Women's

	Waist	Inseam	Chest	Hip
XS	24.5" - 24.5"	29.5" - 29.5"	31" - 31"	34" - 34"
SM	26.5" - 26.5"	29.9" - 29.9"	33" - 33"	36" - 36"
MD	28.5" - 28.5"	30.3" - 30.3"	35" - 35"	38" - 38"
LG	30.5" - 30.5"	30.7" - 30.7"	37" - 37"	40" - 40"
XL	32.5" - 32.5"	31.1" - 31.1"	39" - 39"	42" - 42"

Men's

	Waist	Inseam	Chest	Hip
SM	31" - 31"	32.2" - 32.2"	36" - 36"	37" - 37"
MD	33" - 33"	32.6" - 32.6"	37.5" - 37.5"	38.5" - 38.5"
LG	34.5" - 34.5"	33" - 33"	39" - 39"	40" - 40"
XL	36.5" - 36.5"	33.5" - 33.5"	41" - 41"	42" - 42"
XXL	38.5" - 38.5"	33.8" - 33.8"	43" - 43"	44" - 44"
XXXL	40.5" - 40.5"	34.2" - 34.2"	45" - 45"	46" - 46"

Youth

	Height
SM (8Y)	4.2' - 4.2'
MD (10Y)	4.6' - 4.6'
LG (12Y)	5' - 5'

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