Fiberglass is the most common composite reinforcement. It is available in a variety of weights, type and sizes. Tape is used for seams and tabbing and in all stitch and glue projects.
Various weights of woven cloth and matt to choose from.
Biaxial, Triaxial, and Uni-directional Knitted fiberglass.
Kevlar (Aramid) and Carbon Fiber: extreme in strength and lightweight but more expensive than fiberglass.