We just love the name.. There are many meanings to rude boy. Rastas were called rude boys because they generally scared people. Rude boy can also be a greeting to a cool friend "Wa'ppun Rude Boy" means "what's up bud" Whatever the case... we just love the name, and these shorts kill it, 100% dri-fit and pockets! There is no sizing from the company but, the wiast sizes are roughly as follows: small/28-29, med/30-31, lg/ 32-33, xl/34-36, xxl- 38-40...... don't forget the draw string