Optimist MNR-2 Bi-Radial Mainsail Sailor's weight 34-42 kg The Bi-Radial Series delivers a combination of excellent pointing and speed throughout a wide range of conditions. The bi-radial sail with its cross cut head offers a more easy-trim sail than the full radial models. This is the perfect Optimist sail for racers looking for pointing and keeping your head out of the boat. The MNR-2 Mainsail is our medium depth sail in the bi-radial range, ideal for sailors between 34 & 42 kg. Standard Features Contender 2.99 Polykote with Radial Construction Mylar window Active leech Sail number installation IODA button Tell tales Sail bag Sail ties Optional Class measurement/certificate