Students sit most of the day, provide comfortable seating in your classroom or training room with these popular ergonomic plastic stack chairs. These student stack chairs are favorable in classrooms due to their ergonomic seat shell and lightweight design to move easily around the classroom. The ergonomic comfort-formed shell has a waterfall edge to reduce leg pressure and an air-vented lower back. Plastic chairs are easy to clean for high traffic environments. Spills in the seat drain through the drain holes to prevent water pooling. These stackable school chairs may be used outdoors for school events, protect the chairs from wet weather. We consider this student stack chair to be the premier stack chair - essential for every school and classroom setting. After parent-teacher conferences or school events these chairs stack neatly up to 20 high and can be transported on our steel stack chair dolly.