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Bags & Luggage

Waterproof holdalls, wet/dry bags and crew luggage that survive a season. How welded TPU seams and roll-top closures actually keep gear dry, how to size a crew holdall, and how Sail Racing, Musto, Zhik, Gill, Ronstan and Henri Lloyd compare.

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7 min read

Bags are the least glamorous purchase in a sailor's kit and the one you resent most when it fails. A bag that leaks turns a dry change of clothes into a cold, salty mess before racing starts; a bag that will not fit below decks becomes everyone's problem in a crowded cabin. The gap between a bag that survives a season and one that splits at the dock comes down to a few things that are easy to get right once you know what to look for.

Water-resistant is not waterproof

This is the distinction that matters most, and the one marketing blurs. A water-resistant bag is made from coated fabric — often a polyester tarpaulin — closed with a zip and a storm flap. It beats rain and spray comfortably, but the coated face can wet through under sustained contact and a zip is a water path, so set it down in a puddle or a swamped cockpit and gear gets wet.

A genuinely waterproof bag is a different animal. It is built from welded TPU or PVC with no sewn seam holes and closed by a roll-top rather than a zip. Roll the top three or four times, clip it, and the bag is watertight — the best are rated submersible. The trade-off is fewer pockets and less easy access, because every opening is a potential leak. Neither is "better"; they solve different problems.

The one-line version

If the bag will sit in water — a wet deck, a RIB floor, a swamped dinghy — buy welded seams and a roll-top. If it mainly needs to beat rain on the walk to the boat and live out of a car boot, a water-resistant holdall with good zips and pockets is more usable and perfectly adequate.

Wet and dry, kept apart

The best single feature on a sailing bag is wet/dry compartmentalisation. You finish a race with a soaked, salt-heavy shell and boots, and you do not want them touching your dry base layers, your phone or your car keys. A wet/dry holdall gives the wet kit its own sealed or drained section and keeps the rest dry, so one wet jacket does not damp the whole bag. Better designs add drainage ports in the wet compartment so water runs out rather than pooling — and an abrasion-resistant base in a tougher fabric, because that section spends its life dragged across non-skid, concrete docks and gravel car parks.

Sizing a crew holdall

Volume is where people over- or under-buy. For a full offshore kit — shell, salopettes, boots, mid-layers, base layers and a change of shore clothes — a holdall of roughly 50 to 90 litres is the working range. Fifty to sixty-five litres covers most crew comfortably; ninety is for cold-weather or multi-day campaigns where the layering piles up. For inshore and day racing, a 30 to 40L bag or a large backpack is plenty.

Two shape rules matter as much as the number. First, soft beats rigid for stowage: an unstructured holdall squashes into a below-decks locker where a wheeled hard case simply will not go, so on the boat the squashable bag wins every time. Second, watch the cabin-friendly sizes if you fly to regattas — a 30 to 45L bag doubles as carry-on, which saves you checking a bag full of expensive foulies. Match the bag to how you actually travel: a boot bag for the local circuit, a wheeled holdall for the airport, a roll-top for the RIB.

Backpacks: harness and stowage

A dry backpack is the day-racing workhorse, and comfort is not a luxury here — a loaded 35L pack on a long walk down a marina is a real load. Look for a genuinely padded harness, a sternum strap and, on larger packs, side compression straps that stop the load shifting. A roll-top pack that cinches to two positions lets you run it full or half-height. And remember the shape point: a soft pack flattens into a locker; a rigid framed one does not.

How the brands compare

Every brand here makes something genuinely good; the split is between welded-seam dry specialists and water-resistant everyday holdalls. This is an honest read, not a scoreboard.

Brand / lineBest forNotes
Sail Racing Spray Duffel / Spray BackpackEveryday race kit, stylingWaterproof polyester tarpaulin, reinforced nylon base, clean Swedish design; water-resistant rather than submersible — a smart car-to-boat bag, not a dinghy dry bag
Musto Essential / Evolution / HPXFull holdall rangeEssential duffels in 30/50/90L; Evolution roll-top PVC with a pressure-release valve; the HPX GORE-TEX crew bag for serious offshore
Zhik roll-top dry bags & backpacksTrue waterproofingWelded TPU, YKK waterproof zips, submersible duffels; roll-tops that cinch to two volumes — the dry-bag specialist here
Gill wet/dry holdalls & dry cylindersWet/dry organisationHoldalls built around wet/dry segregation; dry cylinders with a mesh window and flat standing base; PVC tarpaulin welded backpacks
Ronstan Dry Roll-Top rangeValue welded dry bagsTPU-coated, fully welded 10/30/55L bags and crew packs; padded harness and compression straps; keen pricing for genuine waterproofing
Henri Lloyd CSL Dry / BreezeHeritage holdallsCSL Dry Holdall in 100% welded TPU with an air-release valve; the Breeze is a breathable, non-waterproof everyday duffel — check which you are buying

The Invicta Store carries the Sail Racing range, and we are honest about where it sits: the Spray Duffel and Spray Backpack are beautifully made, durable, race-styled tarpaulin bags with a reinforced base — the bag you want moving kit from car to boat and looking sharp on the dock. For a bag that will sit in a swamped dinghy or on a RIB floor, a welded, submersible roll-top from Zhik, Ronstan or the Musto Evolution line is the more literal dry bag, and we will say so. The full head-to-head — capacities, harness comfort and how each wears over a season — lives in our sailing backpacks comparison and dry bags comparison in Invicta Labs.

Strengths
  • Roll-top welded bags are the only truly submersible option
  • Wet/dry compartments transform day-to-day life on a circuit
  • Soft holdalls stow below decks far better than hard cases
  • 50–65L suits most crew; 30–45L doubles as carry-on
Trade-offs
  • Welded roll-tops trade pockets and easy access for waterproofing
  • Water-resistant bags fail the moment they sit in water
  • Oversized holdalls are a curse in a crowded cabin
  • "Breathable" everyday duffels are not waterproof — read the spec

Looking after it

Bags last if you treat them like gear, not luggage. Rinse the salt off after wet events — salt holds moisture and abrades welded seams and zip teeth alike. Empty and dry the bag open, never rolled and damp, or the inside grows mould. Keep zips running with a smear of zip lubricant and check the roll-top strip for grit that stops it sealing. Pair the right bag with your offshore shell and salopettes and crew teamwear and the whole kit travels as a system. Sizing, capacities and fit notes for every bag go live with the store.


Our pickSail Racing Spray Duffel / Spray Backpack

Best for Moving your race kit car-to-boat and looking sharp on the dock

Buy the rival instead if If the bag will sit in a swamped dinghy or on a RIB floor, Zhik's welded-TPU, submersible roll-top dry bags are the more literal dry bag — buy Zhik for true, sit-in-water waterproofing.

The Spray range is beautifully made, durable, race-styled tarpaulin with a reinforced base — a smart, water-resistant everyday holdall rather than a submersible dry bag. Pick it for car-to-boat kit; reach for a welded roll-top the moment the bag has to sit in water.

Bags & Luggage opens as a shoppable collection at store launch. Join the waitlist to shop it first, and read the full sailing backpacks and dry bags comparisons in Invicta Labs while you plan your kit.

Frequently asked questions

What is the difference between a water-resistant and a fully waterproof sailing bag?
A water-resistant bag uses coated fabric and a storm flap or water-resistant zip — it shrugs off spray and rain but will let water in if it sits in a puddle or gets dunked. A genuinely waterproof bag is built from welded TPU or PVC tarpaulin with no stitched seam holes, closed by a roll-top rather than a zip, so it is watertight and often submersible. On an open dock or a wet deck, the roll-top wins; for a bag that lives in a car and a hotel, a water-resistant holdall with proper zips and pockets is often the more usable choice.
How big should a crew holdall be for sailing?
For a full offshore kit — shell, salopettes, boots, mid-layers, base layers and a change of clothes — a holdall of roughly 50 to 90 litres is the sensible range, with 50 to 65L covering most crew and 90L for cold-weather or multi-day events. For day and inshore racing, a 30 to 40L bag or a large backpack is usually enough. Remember that a soft, unstructured bag stows below decks far better than a rigid case, so err towards a squashable holdall you can wedge into a locker.
Why do sailing bags have wet and dry compartments?
Because you finish a race with soaked, salty gear that you do not want touching your dry base layers, phone or car keys. A wet/dry holdall keeps a sealed or drained compartment for the wet kit and a separate dry section for everything else, so one wet jacket does not leave the whole bag damp. Some bags add drainage ports so water runs out of the wet side rather than pooling. It is the single feature that most improves day-to-day life on a race circuit.
Are welded seams really necessary, or is a coated dry bag enough?
Welded seams matter most for bags that will actually sit in water — dinghy trolleys, RIB floors, open cockpits and wet docks — because a stitched seam has needle holes that eventually wick water through, however well taped. Welded TPU or PVC construction removes those holes entirely and is why the best dry bags are rated submersible. For a bag that mainly needs to beat rain and spray on the way to the boat, a well-made coated fabric with a roll-top or storm flap is genuinely enough — you are paying for the last few per cent of protection with the welded models.