Impulse is a super low profile, lightweight, high durability vane. Thanks to its low profile it has 14 percent less chance of hitting the arrow rest, and in the event that it would make rest contact there is less shaft deflection. The composite vane material integrates a technology used in the aerospace industry and maintains its stiffness while resulting in 50 percent less weight than other materials and making these vanes efficient in high winds and unstable conditions. Vanes is 4" length with a 0.3 " profile height, and weigh 5 grains each.