
Seabird Half Rater
The Seabird Half Rater is one of the oldest one-design classes still actively raced today, with vibrant fleets across the UK — from Trearddur Bay in North Wales to Wallasey, Hoylake, and other traditional sailing centres. With their elegant lines and enduring appeal, the Seabird fleet continues to deliver close, competitive racing. At Sanders Sails, we are proud to support this heritage class with dedicated one-design sails, carefully developed to deliver both authenticity and performance.
Our Designs
SB-M2 Mainsail
Refined for balance and power, built to class specification while maintaining the classic look of the Seabird rig.
SB-J1 Jib
Optimised for durability and drive, giving excellent performance across the wind range.
SB-A3 Asymmetric Spinnaker
Developed for stable handling and downwind speed, offering exciting performance while remaining easy to trim.


Proven Class Performance
Sanders Sails has worked closely with Seabird owners to produce sails that respect the history of the class while providing reliable, competitive results on the water. Our designs are all fully compliant with class rules, combining traditional aesthetics with modern sailmaking expertise.
And with our Colour Your Spinnaker app, you can even design your own SB-A3 in your choice of colours before it’s built.
Pricing Guide
Please note that pricing can change at any time due to various circumstances. For the most up-to-date pricing, please get in touch. Prices are valid until 31st December 2025.
Mains £1050 + vat
SB-M2
Jibs £340 + vat
SB-J1
Asymmetric Spinnaker £490 + vat
SB-A3
Want to find out more about our unique range of One Design sails? Get in touch with the Sanders team, we’d love to hear from you!
HAWK 20
LIGHTNING
368
NORDIC
FOLKBOATS
POOLE
DOLPHIN
R19
SCOWS
X ONE
DESIGN
YACHTING WORLD
DAYBOAT