Belgium Nationals 1
Swedish Nationals
Kiel Week
Europeans 2,3
French Nationals 1,2
World Championship 3
British Nationals 1,2,4
Nationals Veterans 1
Nationals Masters 1
Danish Open Champs 1
Polish Masters 3


Spring Cup Medemblik 1
Kiel Week 1
Worlds 1,2
UK Nationals 1
German Nationals 1


Sail Auckland 1,2,3
Inter Ligue Sanary 1,2,3
French Nationals 2,3


French Nationals 3
French Nationals Girls 1


French Nationals 1


German Nationals 1,3 
French Nationals 1,2,3

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Class Photos
Charlie Cumbley
OK Europeans 2016

Photo Robert Deaves


Mainsail (M-19) 

This mainsail is a product of extensive development throughout 2015, culminating in winning several of the major events including the world championships. The full radial layout follows our incredibly successful Finn sail line up and allows precision placement of the shape, meaning a smoother, faster sail. The sail is manufactured from Contender RS2.5 Polykote

Standard Features:

  • Class insignia
  • Sail numbers
  • Vision window
  • Epoxy battens/Elastic pockets
  • Leech tell tales
  • Luff tell tales
  • Leech line
  • Long roll bag
  • Measurement is not included but can be offered on request subject to an additional charge
  • When ordering we require your mast bend numbers for the correct sail shape and also mast type to fit the correct size luff elastic
For prices and more information contact our OK Experts or your

Mast Bend

All North Mainsails can be built to fit all different masts. See here for complete information on how to measure your mast bend.

New tuning guide under development - coming soon!


 OK Batten Set
Mainsail Epoxy Set

Sail Numbers & Letters

300mm (12”) Sail Letters & Numbers

Please contact your local North Loft or Agent to make your order or for further details.

Contact the OK Experts:
Andre Budzien
+49 (0)151 27555015 Mobile
+49 (0)385 3924378 Work
Charlie Cumbley
+44 (0)1329 443430 Work
Soren Kjaer
Blueboats Nordic
+45 20748884 Work
Recent News

Order Early, Save More in Our Seasonal Savings

B14 UK National Championship

J/70 Swedish National Championship

New J/70 XCS-1 Mainsail
Introducing a new Crosscut design!

Fireball UK National Championship
Tom Gillard & Richard Anderton first with a day to spare.