thumb|right|A component view of a Glare3-3/2 hybrid sheet. There are three layers of aluminum alternating with two layers of glass fiber. In a Glare3 grade, each glass fiber layer has two plies: one oriented at zero degrees, and the other oriented at ninety degrees.
Glare (derived from GLAss REinforced laminate ) is a fiber metal laminate (FML) composed of several very thin layers of metal (usually aluminum) interspersed with layers of S-2 glass-fiber pre-preg, bonded together with a matrix such as epoxy. The uni-directional pre-preg layers may be aligned in different directions to suit predicted stress conditions.
Though Glare is a composite material, (before the aircraft's service entry in 1995) and blocked Bombardier's plans to use Glare in its CSeries aircraft in 2005. which was first delivered in 1998. (However, this is much smaller than an Airbus vice president's early claim that Glare would result in of savings, as shear strength precaution (although the Glare supplier felt it could have handled that area),