The profil of the sails is made in the whole area of the sails so that they are suitable in the weak wind, too.
A new wide mast sleeve gives higher power to a sail and makes easier putting a mast into it during trimming. New concave cutting off the leech and foot prevents from its twisting.
Six carbon battens give the sails stability, little weight and great power in the light and middle wind conditions.
Recomended mast for the sails is Technofiber CC 490/29 IMCS (constant curve) plus steady mast extension 45 cm or 35 cm for the 9.5 m2 and 8.5 m2 sails. You can also use a 520/32 IMCS mast."
| Brand | Model | Year | Size (m2) | Max. Luff (cm.) | Max. Boom (cm.) | No. Of Cams | No. Of Battes | Weight (kg.) | Mast type | Ideal mast length/IMCS | Option | IMCS Range | Nation |
| Slim | Marathon SL | 2011 | 9.5 | 540 | 240 | 2 | 6 | 5,2 | SDM / RDM | 490/29 | 520/32 | 29-34 | |
| Slim | Marathon SL | 2011 | 8.5 | 525 | 225 | 2 | 6 | 4,9 | SDM / RDM | 490/29 | 520/32 | 29-32 | |
| Slim | Marathon SL | 2011 | 7.5 | 495 | 220 | 2 | 6 | 4,5 | SDM / RDM | 490/29 | - | ? | |
| Slim | Marathon SL | 2010 | 9.5 | 540 | 240 | 2 | 6 | 5,2 | SDM | 490/29 + EX | 29-33 | ||
| Slim | Marathon SL | 2006 | 9.5 | 550 | 245 | 4 | 7 | 5,4 | RDM | 490/29 + EX | ? | ||
| Slim | Marathon SL | 2006 | 8.5 | 525 | 235 | 4 | 7 | 5 | RDM | 490/29 + EX | ? | ||
| Slim | Marathon SL | 2006 | 7.5 | 493 | 220 | 4 | 7 | 4,5 | RDM | 490 / 29 | ? |
