UV protection Lightweight, stretchy, breathable, moisture-wicking Advanced use of yarn compensation, improves muscle function. Double folded width: arm 11cm(4. 33 inch), cuff5cm(3. 34 inch). Length: 35cm(13. 38 inch)(measuring errors: 1-2 cm). Suitable for cycling, fishing, golf, drive, jogging, claiming, and all other outside activities. 100% brand new and high quality. Color: Black/white/gray/blue/pink. Package includes: 5 pairs cooling arm sleeves - COOLING & UPF 50 PROTECTION: With the newest UPF 50 protection technology, cooling arm sleeves block out over 98% of harmful UVA and UVB rays and set you free from sunscreen,while the use of high-elastic fabrics allows you indoors or outdoors activities comfortable and happy - WIDE RANGE OF USES: For all outdoor sports and activities.The UV cooling sleeves will protect your skin from the sun whether youre running, golfing, playing basketball, tennis, boating, fishing, cycling,driving or even gardening - ONE SIZE FITS ALL: Our cooling sleeves are designed for both man and woman,with high elasticity, good retention.Dont worry to slip off your upper arm.For the size,if your bicep size is 8inch - 13inch, you may fell completely comfortable when wearing our arm sleeves - BETTER MATERIAL THAN OTHER BRANDS : Made of cooling stretchy protofilament (90% nylon and 10% spandex).Its cooler and protect your skin better than other brand. Allows you to do any outdoor activities,no need to use sunscreen anymore - PACKAGE COMTENT: 5 pairs or 6 pairs of arm sleeves,Lightweight, breathable, flexible and boasting anti-slip elasticity and a thumb hole cuff