Ripstop canvas is a canvas typically evident by a raised grid pattern woven in to it.
- This grid pattern is thicker and a different type of thread called corespun, and provides exceptional strength. Any ripping or tearing of the canvas is slowed down or stopped by this exceptional strong corespun thread.
- Core-spun yarn or thread is constructed by spinning a sheath of the naturally short cotton fibres around a continuous core of high strength polyester filaments. With the continuous polyester filament core along the yarn, core-spun will have a much higher tensile strength than standard cotton/polyester blended yarn.