For Style and to endorse the product.
Basketball players wear sleeves on the arm they shoot with so it stays warm. In addition it is an extension of the wrist sweat bands from the old days, keeping the sweat from running down their arm and onto their shooting hand. Keeping their shooting hand dry is important for feel on the ball when passing, dribbling and shooting.
A football players wear a thin white band on the arm to protect the tendons near the elbow. The pressure from the band minimizes pain and injury to that area.
from a local sporting goods store like sportsauthority
to keep their arm from flaring up also to keep the muscles tight so they dont get a cramp because if they put it on their shooting arm that arm wont be loose enough to find his/her shot
shooting sleeves keep your arm warm... they also keep your elbows straight when you shoot...NBA players also wear them to cover up inappropriate tattoos and cuts.. and just for style too... Really good NBA players wear them.. like Dwight Howard, Kobe Bryant, and Dwayne Wade
Wear clothing with sleeves long enough to cover it.
There is no harm in wearing the compression sleeves. In fact they help swollen arms and better blood transfer around the bodies arm. A person should wear compression sleeves with no worries.
they wear it when somebody past away.
Arm sleeves protect the arms when it is cold leaving the arms feeling much warmer than without arm sleeves. Arm sleeves are great for when working out because it helps the body to sweat more causing the arms to lose fat faster than without sleeves.
It's not only a fashion statement. Many NBA players and other professional athletes wear them to improve blood flow and prevent injuries. Many arm sleeves also have pads that protect the player's elbow when an impact occurs.
Some people wear sweatbands or wristbands, but not everyone does.