Ask an owner what a race programme carries and they’ll usually name the sails. Ask the boat captain and you’ll get a much longer list, most of it soft, most of it invisible in photographs, and almost all of it load-bearing in one way or another.
A Grand Prix textile package is an inventory, not a cover. A campaign carries dozens of separate soft items, and each one exists because something specific goes wrong without it. Almost all of it is about three things: protecting expensive laminate sails, keeping deck hardware alive, and letting a crew move fast in the dark. Weight discipline applies to every item. On a box-rule boat, the soft inventory is one of the last places to save weight without a measurement argument. One-design and box-rule fleets carry different packages. An RC44 runs a tightly controlled one-design inventory; a TP52 campaign has more freedom and uses it. The bags do the hardest work. Sail bags handle the most valuable, most fragile and most awkward items aboard, repeatedly, wet, at speed. Nothing on this list is decorative. If an item isn’t earning its weight, a serious programme leaves it on the dock.
Keep reading for the complete guide.
Sail bags are the most demanding item in the inventory, because they handle the most valuable and most fragile things on the boat.
A modern laminate racing sail does not enjoy being folded, dragged, compressed or stored damp. It also has to be moved by hand, repeatedly, often at speed, sometimes in the dark, usually by people who are tired. The bag is the interface between a very expensive piece of engineering and the physical reality of a crew working a boat.
That produces requirements a general-purpose bag doesn’t meet. The bag has to be genuinely waterproof rather than water-resistant, because a sail stowed damp comes out heavier than it went in, and repeated damp storage is how mildew and delamination start. It needs handles positioned for the actual lift, not for the photograph. It needs to open wide enough that a sail can be fed in without being forced, because forcing is what creases laminate. And it needs to survive being dragged across non-skid, which is designed to abrade.
Loft’s waterproof bags are built from ECOPAK EPLX 200 and 400 laminate by Challenge Sailcloth: a fully waterproof laminated construction, light, with high tear strength from a 45 degree reinforcement, built on recycled polyester components and finished with a C0 DWR that uses no fluorocarbons.
A spinnaker turtle or launch bag is its own problem again, because it has to release cleanly under load and then not go anywhere. Getting that wrong costs a hoist.
Below the boom and around the cockpit sits the least glamorous and most used part of the whole inventory.
A Grand Prix boat runs a great deal of line, and almost all of it has to go somewhere between manoeuvres. Tail bags take the loaded ends off the winches so the cockpit stays clear. Halyard bags keep the masthead lines contained at the mast base. Without them, rope ends up on the floor, which is where it gets stood on, tangled and occasionally washed overboard.
Three things make these work or fail. Drainage, because they fill with water and a bag holding several litres is carrying weight in a bad place. Shape, because a bag that collapses when empty is a bag that doesn’t get used. And mounting, because the attachment points take real load when a wave lands in a full bag, and they take it repeatedly.
These are also the items where weight saving is most available. A full set built from laminate rather than coated fabric takes meaningful weight out of the boat for the cost of a conversation, and unlike most weight savings on a race yacht it requires no engineering change at all.
Deck hardware is the most expensive per-square-metre equipment on the boat, and the most exposed.
Winches carry bearings and pawls that do not appreciate salt or UV. Pedestals house gearing. Instruments and displays degrade visibly under Mediterranean sun, and they’re mounted exactly where the sun is strongest. Clutches, blocks and travellers all have moving parts that seize when salt is allowed to dry in them repeatedly.
Covers for these items live a different life from a mainsail cover. They go on and off daily rather than seasonally, often while the crew is doing six other things. That makes usability the binding constraint. A winch cover that takes two hands and a minute is a cover the crew stops using by the second regatta, and the programme has then paid for protection it isn’t getting. Nobody reports this. The covers simply stop appearing, and the first anyone knows is a damaged winch two seasons later.
The hardware-and-thread problem bites hardest here too. These are small items with a lot of stitching relative to their area, and ordinary polyester thread degrades under UV faster than the cloth it holds together.
A mainsail cover has one job that matters more than the rest: protect the sail without damaging it.
The failure mode is chafe rather than UV. A cover that isn’t tensioned properly flogs at anchor and in a breeze, and a flogging cover works against the leech of the sail it’s meant to protect. Over a season that does more damage than leaving the sail uncovered for a week.
So the design questions are about tension, closure spacing and what happens where the cover meets standing rigging. A seam that crosses a stanchion base or lies against a shroud at the wrong angle will open in a single season, and it does it in a way that looks like fabric failure when the pattern was really at fault.
The last category is the smallest and the most boat-specific: the pieces that stop one part of the rig destroying another.
Spreader patches protect sails where they bear against spreader tips on a tack or gybe. Forestay and furler collars stop chafe where a sail meets the rig. Padding goes on anything with a sharp edge in a place where a sail or a crew member will meet it under load.
Each of these exists because someone once had an expensive failure. None of them shows up in photographs. Collectively they’re the difference between sails lasting a season and sails lasting most of one.
The package changes with the rule the boat races under.
The RC44 is a strict one-design. The fleet races identical boats, equipment is tightly controlled, and the inventory is correspondingly standardised. The advantage for a workshop is repeatability: a well-solved item can be built the same way across the fleet, and improvements carry.
The TP52 is a box rule. The class rule sets the envelope and campaigns refine their boats inside it, and the fleet racing the 52 SUPER SERIES has spent the seasons since 2012 pushing on exactly that. There’s more freedom in the soft inventory, and serious programmes use it, which is why two TP52s in the same regatta can carry noticeably different packages.
Maxis and superyacht-scale race boats are a third case again, where the sheer size of each item changes what’s physically possible to handle on deck.
Loft Customs publishes its Honors List, the record of programmes and boats the company has worked with. It spans America’s Cup teams, TP52s including Sled and Gladiator, the RC44 class, Club Swan 50s, Maxis including Bella Mente, and race boats including Raven and Skorpios.
The list is the public record, and that’s deliberately where it stops. What was built for any individual boat, how a particular problem was solved, and what a specific programme chose to carry all stay with the boat. Owners and programme managers are entitled to that, and a supplier who discusses one client’s package will eventually discuss yours.
What can be said generally is the reasoning, which is why this article describes categories rather than campaigns. Loft calls the method Race-First Design: engineer to race-boat standards first, then carry it across to superyachts and premade gear. It’s a named method rather than a registered standard.
BJ Simons, who founded Loft Customs, was a sailmaker on three Alinghi America’s Cup campaigns in 2003, 2007 and 2010, followed by five years on the Grand Prix circuit with Ran, Bella Mente, SailGP and Cannonball. The inventory above is not a catalogue. It’s a list of things he’s watched fail.
Tell us the boat, how it’s used and what the textiles have to survive, and the brief starts from the geometry rather than from a catalogue.
Q: How many separate soft items does a Grand Prix programme actually carry?
A: More than most owners expect, and the number varies with the boat and the rule. A full package spans sail bags for each sail in the inventory, spinnaker launch bags, tail and halyard bags around the cockpit and mast, covers for every winch, pedestal and instrument, a mainsail cover, and the small protective items on the rig. Each one is separately specified.
Q: Does a one-design fleet limit what a workshop can do?
A: It limits what varies between boats, not what quality is possible. In a strict one-design like the RC44 the advantage moves to execution and repeatability: solve an item well and the solution carries across the fleet and across seasons.
Q: Why not use standard off-the-shelf bags and covers?
A: For some items you can, and there’s no virtue in bespoke for its own sake. The argument for custom work is strongest where fit determines whether something chafes, where weight is genuinely contested, and where the item has to be handled fast by a crew under pressure. That covers most of the list above.
Q: What fails first in a race textile package?
A: Almost never the fabric. Thread, fastenings and zips go first, and after them the reinforcement at chafe points. That’s why a workshop’s answers about thread and hardware are more informative than its answers about cloth.
Q: Can a programme based outside the Mediterranean be supplied from Palma?
A: Yes. Well-documented boats can be patterned remotely from drawings, and Loft built the full cover set for Skorpios, a ClubSwan 125 in Finland, entirely remotely when travel stopped during COVID. Everything fit.
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