VIPER 640 M-9 MAINSAIL

Marsoni

M251S

$1735.00

Get it in 3 business days with 1 day shipping. Friday, May 29

VIPER 640 M-9 MAINSAILWith the same shape and twist profile as the M8, the M9 introduces a high tech aramid fiber layout inside the laminate film. Aramid is a stronger fiber so not only will this 2019 World Championship winning sail give you an advantage in durability, it will stretch less in big breeze and when you wail on your control lines making the sail more controllable.

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Your VIPER 640 M-9 MAINSAIL orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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You'll receive a tracking link by email once your VIPER 640 M-9 MAINSAIL ships.

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I like this coat overall. It fits really well, nicely tapered, and a good weight, but the fabric has a sheen to it, very noticeable in brighter light, which I'm not crazy about. It doesn't have any inner breast pockets, and I don't feel secure putting my phone in the side pockets. I did get lots of positive comments from friends.

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Reviewed in the United States on December 22, 2025

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Jaden Allen

Port Orchard, US

★★★★★ 5

Great style chose for any occasion

Size: Medium, Color: Black

Genuinely the perfect fit and great for the style I prefer. Great material and thick to keep you warm but not to hot. Black is deep and adds that depth that I am looking for

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Reviewed in the United States on January 8, 2026

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Vladimir

Bozeman, US

★★★★★ 1

fake description

Size: Medium, Color: Black

The description states 100% cotton, but it is actually 100% polyester. I don't know what I was counting on... Returning

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Reviewed in the United States on January 23, 2026

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