For sailors up to 99 lbs (up to 45 kg). When it’s time to accelerate your program, you want the best – the Quantum XR-1. The panel designs include a cross-cut body for a smoother entry and exit, as well as a radial head to better distribute the loads. The XR-1 Optimist sail features the latest sail materials and technology, including a new sail cloth with superior stretch resistance and a new design with more volume at the top for faster sailing. All sails come with battens, vision window, luff and leech telltales, IODA royalty button, tube bag, sail ties, and sail numbers (digital eights for customer installation).