"The shaka sign, sometimes known as "hang loose," is a gesture of friendly intent often associated with Hawaii and surf culture. It consists of extending the thumb and smallest finger while holding the three middle fingers curled, and gesturing in salutation while presenting the front or back of the hand; the hand may be rotated back and forth for emphasis. While the shaka sign has spread internationally from its Hawaiian cultural roots to surf culture and beyond, the hand gesture also bears a variety of meaning in different contexts and regions of the world." Shaka, Hang Loose Hand Patch. Patch measures 3" x 2.5". We use HeatNBond Ultrabond iron-on backing, but we advise our customers to use the iron-on backing at their own discretion and cannot guarantee that it will stick to all fabrics. Please make sure material is prewashed with no fabric softner prior to ironing on patch. We recommend sewing the patch on for best results.