Sail1Design partners with North Sails One Design, focusing our efforts on Optimist & International 420 service, sails, and sail development. S1D is a dealer for North Sails in these classes. For more information contact North Sails i420/Optimist Class Rep Tom Sitzmann
OPTIMIST SAILS 
Sail1Design’s Tom Sitzmann, a former sailmaker and loft owner, has been evaluating and studying Optimist sail designs since his son Tommy started sailing the boat. Now partnering with North Sails One Design, Tom continues to work on this very unique sail, and with the design and engineering expertise, and legendary success of North Sails, hopes to continue to improve the boat for American youth sailors. Tom will collaborate with North Designer Mike Marshall on new Optimist sail designs. Order a North MNR Optimist Sail.
INTRODUCING A NEW NORTH OPTIMIST SAIL: THE MNR SERIES
North Sails, the world leader in One Design, have added a new series of user friendly Optimist sails for the exciting dinghy class, completing their full range of diverse sail solutions for any Opti sailor.
The new ‘all-around’ MNR Series delivers increased pointing ability from the radial bottom which allows the lower leech of the sail to stand up. Paired with the bi-radial design, the crosscut top allows the head to twist open ensuring boatspeed is maintained. As a result of the sail design delivering proper trim without constant attention, Opti sailors are able to look around for pressure and wind shifts, while maintaining speed throughout a wide range of conditions and tuning changes.
North Sails Designer Mike Marshall says, “The new bi-radial MNR Series is the perfect Optimist sail for racers looking for a balance of pointing, speed, and keeping your head out of the boat. We wanted to create a sail that will give any Opti racer around the world a competitive advantage and the feedback from this sail has shown that sailors increase their pointing without sacrificing speed upwind or downwind. The sail overall is very dynamic and reacts well to all tuning options on the table in the Optimist Class. North Sails is committed to delivering the very best products, and we’re proud to give our young Opti sailors the best chance of succeeding on the water.”
The new bi-radial MNR Series is the perfect Optimist sail for racers looking for a balance of pointing, speed, and keeping your head out of the boat.
The sail is still very sensitive to sprit tension, offering Opti sailors the opportunity to make it fit any conditions. In light airs, or waves, where racers want a bit more speed, they can loosen the sprit as required. In flat water, or medium breeze, sailors can tighten the sprit and close the leech for extra pointing.
The MNR-1 is the flattest sail in the bi-radial range, ideal for sailors below 34kg. The medium-depth MNR-2 is designed for sailors between 34-42kg. The MNR-3 is the deepest and most powerful, perfect for sailors over 42kg. For more information contact North Sails Optimist Class Rep Tom Sitzmann
Optimist MNR-1 Sail Sailors weight below 34 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-1 Mainsail is our flattest sail in the bi-radial range, ideal for sailors below 34 kg. Order a North MNR Optimist Sail
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
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Optimist MNR-2 Sail Sailors 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. Order a North MNR Optimist Sail
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
____________________________________________
Optimist MNR-3 Sail Sailors weight above 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-3 Mainsail is our most powerful sail in the bi-radial range, ideal for sailors plus 42 kg. Order a North MNR Optimist Sail
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
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i420 SAILS
The International 420 is one of the most popular junior classes around the globe. With our worldwide contacts and design input, we continue to help refine the racing sails for top performance. Our Blue Ribbon Line of 420 sails is designed for college or high school teams that demand the ultimate in durability. While these sails are not class legal for C-420 Class Association events, this line does allow unlimited customization to cover the branding requirements of each fleet. ORDER North i420 Sails.
For more information contact North Sails i420 Class Rep Tom Sitzmann
MAINSAILS
420 M-9 Mainsail This new design has a deeper bottom-middle shape than other 420 mainsails. Combined with a balanced shape in the top section, that makes trimming easier. We’ve also added curvature down low to improve performance in vang-on conditions, when high boom-vang tension adds mast bend down low. 
Easy to trim with good acceleration in a range of conditions. BUY NOW
Designed by North Sails Japan.
Standard Features
- 420 insignia
- Sail numbers
- Spreader window
- Battens
- Tell tales
- Sail bag
- Class button
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420 M-11 Mainsail The M-11 Mainsail is a further development of our M-7 design. It has a deeper top and middle to make it powerful to suit heavier weight crew and provides the sail with more twist, allowing you to sail lower and faster in waves with great acceleration. This is a great sail choice for heavier crew and sailing in waves and swell especially. BUY NOW
Standard Features
- 420 insignia
- Sail numbers
- Spreader window
- Battens
- Tell tales
- Sail bag
- Class button
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HEADSAILS
420 J-12 Jib The J-12 jib has been updated with a straighter exit straighter and 3 battens to stabilize the leech, which improves power and increases the leech area. Carbon battens are used for minimum weight and maximum durability and performance. 
Designed by North Sails Japan. ORDER North i420 Sails
Standard Features
- Window
- Tack cleat
- Tell tales
- Sail bag
- Class button
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420 J-13 Jib The New J-13 jib features a pretty flat entry and straighter bottom exit, good for tight windward sheeting and good for pointing. This sail is recommended forexperienced crew, advanced trim.
D esigned by North Sails Japan. ORDER North i420 Sails
Standard Features
- Window
- Tack cleat
- Tell tales
- Sail bag
- Class bag
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SPINNAKERS
420 S-01 Spinnaker Based on our popular 470 design, this spinnaker performs well on both runs and reaches. It has the largest projected area of all our 420 spinnakers, and the depth is balanced from top to bottom to make trimming easier. Since the sail itself is a little flatter than the S-05, you can play the spinnaker pole
height to stabilize it when required.
420 S-05 Spinnaker This fuller, more stable design makes trimming easier, especially in choppy water. It has a bit less projected area than the S-01. Designed by North Sails Japan. ORDER North i420 Sails
