Marathon/ Performance Series 300
North Soft NorLam™ XW/XG laminated polyester sail cloth

North Marathon and Performance Series 300 radial sails are made using laminates consisting of a mylar film core sandwiched between two thin layers of woven polyester fabric. They deliver lighter weight, lower stretch and improved shapeholding for small-to-midsize cruising and racing boats. The woven yarns carry load in the primary strain directions while the mylar film limits distortion in the off-threadline direction. The woven polyester outer layers maintain a soft feel for easy handling while radial construction delivers lower stretch and a smoother, longer lasting shape.

Marathon Series 300 sails are designed for recreational cruising.
Performance Series 300
sails are specifically optimized for performance cruising, class racing, handicap rules or rating rules.

North sail designers use the same North Design Suite design software to create our 300 sails as they do for our dominant 3D molded sails, and can draw from the world’s largest library of winning racing sail designs (“molds”). This means North can produce a competitive 300 sail for virtually any sailboat or sailboat class.

Product Highlights
  • Low stretch mylar/polyester laminate
  • Polyester taffeta outer layers for soft feel and easy handling
  • Radial panel construction
  • Designed using North Design Suite software
  • Available in white or gray tint styles

Which upwind sail is right for you?
All Upwind Sails Page
Upwind Sail Performance Guide



Marathon and Performance
Series 300 laminates consist
of a mylar film core surrounded
by two layers of lightweight
woven polyester.
Marathon/Performance 300 Mainsails and Headsails
  • Laminated polyester sailcloth
  • Radial paneled layout with vertically shaped seams for mainsails and genoas
  • Loose-footed main with Integral Foot Skirt for shape and control
  • Luff customized to mast/boom or headstay system (except for custom luff cars)
  • Teardrop corner reinforcements
  • Stainless steel round rings and Rutgerson press rings
  • RBS epoxy “E-glass” battens
  • Pockets with Velcro stuff or tie in closure
  • Cunningham adjustment on headsails
  • Pre-stretched Polyester leech and foot cord with purchase adjusters
  • Telltales
  • Drawstring sailbag
Marathon Series 300 Mainsail Options
  • Full length battens
  • Leech battens
  • Sail numbers
  • Country code
  • Insignia
  • Trim stripes
  • In boom furling construction
  • Reefs
  • Reef keepers and flaking handles
  • Photo and corner codes
  • UV protection
  • SailKote Anti-Mildew Treatment
  • QuickCover
  • Roll bag or zippered sausage bag
Marathon Series 300 Headsail Options
  • Telltale window
  • Spreader and stanchion patches
  • Roller reefing patches
  • Rope Luff Reefing Pad and patches
  • Foam Luff with reefing patches
  • UV protection
  • SailKote Anti-Mildew Treatment
  • Roll bag or zippered sausage bag
Performance Series 300 Mainsail Options
  • Higher roach profiles through additional area
  • Reefs
  • Reef keepers and flaking handles
  • Full length battens
  • Leech battens
  • RBS Carbon leech battens
  • Sail numbers
  • Country code
  • Insignia
  • Trim stripes/Glow Fast stripes
  • Photo and corner codes
  • Certified measurement
  • Overhead leech cord
  • Roll bag or zippered sausage bag
Performance Series 300 Headsail Options
  • Telltale window
  • Leech battens
  • Full length battens
  • VB+ vertical battens
  • Spreader and stanchion patches
  • Soft hanks
  • Soft clew
  • North Clewboard
  • T-ring clew
  • Tack Snap Shackle
  • Sail numbers
  • Country code
  • Insignia
  • Trim stripes/Glow Fast stripes
  • Photo and corner codes
  • Roller reefing patches
  • Rope Luff Reefing Pad and patches
  • Foam Luff with reefing patches
  • Reef
  • UV protection
  • Roll bag or zippered sausage bag
Marathon Series 300
  • Laminated mylar/
    polyester sailcloth
  • Radial panel construction


  • Performance Series 300
  • Laminated mylar/
    polyester sailcloth
  • Radial panel construction