These are small, airfoil-shaped components made of a flexible polymer, affixed to the rear of an arrow shaft to provide stability and guidance during flight. They are a crucial element in archery, influencing accuracy and trajectory. For example, archers use them to correct for wind drift or to optimize arrow flight with specific bow setups.
Their selection impacts arrow speed, drag, and overall precision. Performance advantages include enhanced arrow stabilization, tighter groupings, and improved forgiveness on less-than-perfect releases. Historically, feathers were used for this purpose, but modern polymer materials offer improved durability, consistency, and resistance to environmental factors. This has led to their widespread adoption in target archery, field archery, and bowhunting.