Nuckily F005 Leg Sleeves (Black) Use-Gravel The perforated mesh side is

The perforated mesh side is good for air flow

Shimano Altus RD-M370 9 speed rear derailleur Jockey Wheels

water-resistant seamless synthetic cover Steel rails 513g

providing maximum bearing contact area and greatly increased bearing life

Ceramic Friendly Yes Carbon Friendly  - Waterproof Yes Quantity 113gms

Nuckily F005 Leg Sleeves (Black) Use-Gravel The perforated mesh side isHigh tech sublimation printing with non toxic ingredients is long lasting and not harmful to your skin. Upper arm cuff with soft silicon gripper, wrist cuff with an elastic band. Features This Cycling leg sleeves is suitable for all levels cyclists, which includes road biking or mountain biker. Even if youre sweaty the arm sleeves quick dry feature makes you feel more comfortable. High tech sublimation printing with non toxic ingredients is long