The new upgraded version of the great SK8! Now with RBS fiberglass battens. SK821 is a 2 square meter sail. The fiberglass frame uses the tip wand which allows the rig to be taken apart or assembled very quickly to a short 45 inch roll. SK821 works well enough in light air. The 2 square meter rig is very durable. SK821 is an excellent gale sail. SK821 is the best beginner rig designed for kids or experts seeking to simplify the hand held wing experience.