Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
Made to measureIllustration. Yours is cut to this boat’s measurements.Express +8%, economy 5.5% off. Shown as its own line in your cart.
The sock goes in your cart as its own line, linked to this spinnaker.
OSR max 7.1 m²Luff tape relies on a foil, so it does not meet the OSR luff-attachment rule. Choose hanks or wrap luff for offshore racing.
Tell us your track size after you order.
Every Irwin 31 (tall mast) price on one printable page: mainsail and genoa in each cloth, the spinnaker, sock, storm sails and canvas, plus the rig dimensions.
| Measurement | Metres | Feet |
|---|---|---|
| I (fore-triangle height) | 11.89 | 39.0 |
| J (fore-triangle base) | 3.69 | 12.1 |
| P (mainsail luff) | 10.36 | 34.0 |
| E (mainsail foot) | 4.27 | 14.0 |
| Mainsail area | 25.9 m² | 278 ft² |
| Fore-triangle area | 21.9 m² | 236 ft² |
| Length overall (approx.) | 9.45 | 31 |
We confirm your measurements before anything is cut.
From A$2,454.10 in Dimension-Polyant Optimum Cruise with 3 leech battens and a full-length head batten, or A$2,649.90 with 4 full battens. C-Breeze, the long-life cloth, starts at A$3,273.60. Every mainsail is cut to the Irwin 31 (tall mast) rig (P 10.36 m, E 4.27 m) with two reefs.
We build 110% to 150% LP for the standard rig (I 11.89 m, J 3.69 m). Pick a smaller genoa for a windy home port and a larger one for light-air sailing. Furling genoas start at A$2,076.80.
A Size 4 (57 m²) asymmetric suits the Irwin 31 (tall mast) fore-triangle. It starts at A$1,849.10, or A$2,549.80 with a dousing sock.
The Offshore Special Regulations cap a storm jib at 5% of I squared (7.1 m² here) and a trysail at 17.5% of P × E (7.7 m²). That makes our Medium (5.7 m²) storm jib and Small (6.1 m²) trysail the right sizes.
Measure I, J, P and E and compare them with the rig table. We confirm every measurement with you before the sail is cut.
For a race programme, a Sydney to Hobart or a bluewater expedition, our sister loft Kraken Sails designs laminates, membrane sails and storm wardrobes for the hard end of sailing.
