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Names the closure and the fabric, and neither the coating nor a rating

crazy4sailing C4S coated ripstop dry bag, 5 litres, roll-top

A light roll-top in coated ripstop that states a floating claim conditional on being closed properly, and leaves the coating, the denier and the seams unnamed.

crazy4sailing C4S black ripstop dry bag with its roll-top closed

crazy4sailing C4S coated ripstop dry bag, 5 litres, roll-top

A light roll-top in coated ripstop that states a floating claim conditional on being closed properly, and leaves the coating, the denier and the seams unnamed.

Stated volume
5 litres for this listing — stated in the title, with the maker offering the range from 1.5 to 30 litres
Fabric
Ripstop — stated as tear-resistant and coated, and described as durable at low weight
Denier
Not published on the listing
Coating
Not published on the listing — the fabric is described as coated ripstop and the coating itself is never named
Seam construction
Not published on the listing
Closure type
Roll-top — stated, described as sealing reliably, easy to handle, and as making the bag float when correctly closed; no number of turns is given
Stated water rating
Not published on the listing — the maker claims the bag is 100 per cent waterproof, with no standard, no ingress rating and no water column figure
Weight
Not published on the listing — described as ultralight and foldable, with no figure
Purge valve
Not published on the listing
Amazon reference
B01DLFTVWI (same reference on 6 Amazon marketplaces)
EAN
4031396064099
  • Names the closure as a roll-top rather than describing only the buckle that holds it
  • Ties the floating claim to the condition it depends on — correctly closed — instead of stating it flat
  • Coated ripstop names half a fabric; the coating is what does the waterproofing and it is never said

Best for: A day on the water where the bag has to shut fast and stay on the surface if it goes over.

≈ 13 €
Check price on Amazon

Specifications

Stated volume
5 litres for this listing — stated in the title, with the maker offering the range from 1.5 to 30 litres
Fabric
Ripstop — stated as tear-resistant and coated, and described as durable at low weight
Denier
Not published on the listing
Coating
Not published on the listing — the fabric is described as coated ripstop and the coating itself is never named
Seam construction
Not published on the listing
Closure type
Roll-top — stated, described as sealing reliably, easy to handle, and as making the bag float when correctly closed; no number of turns is given
Stated water rating
Not published on the listing — the maker claims the bag is 100 per cent waterproof, with no standard, no ingress rating and no water column figure
Weight
Not published on the listing — described as ultralight and foldable, with no figure
Purge valve
Not published on the listing
Amazon reference
B01DLFTVWI (same reference on 6 Amazon marketplaces)
EAN
4031396064099

What this listing puts on record

A 5 litre waterproof bag in coated, tear-resistant ripstop, with a roll-top closure that the maker states seals reliably, is easy to handle, and makes the bag floatable when correctly closed. The range runs from 1.5 to 30 litres in several colours, and the bag is described as foldable, ultralight and easy to stow. The maker claims 100 per cent waterproofing against water, sand and dirt.

A conditional claim, which is better than an absolute one

Most floating claims on this kind of product are stated flat. This one is not: the bag floats when correctly closed. That condition is the whole mechanism — a roll-top traps air in the fold, and a bag that has been rolled once and clipped is not the same object as a bag rolled properly. Publishing the condition alongside the claim is a small piece of honesty and it is worth marking.

Half a fabric specification

Coated ripstop. Ripstop is a weave; the grid of heavier threads is what stops a puncture running. It says nothing about water. The coating is what does that work, and it is not named here, so the sheet stops one word short of the answer. No denier is given either, which would at least say how heavy the base cloth is.

Two of the seven bags on this shelf publish a denier and two name a coating. This one does neither, which puts it in the emptier half of a family that is not generous with figures anywhere.

100 per cent, and nothing to check it against

The phrase is in the first bullet and there is no standard behind it, no ingress rating and no water column figure. Compare that with the two bags here that do publish a water column of 10,000 mm, one of which also publishes what it will not do — it says plainly that it is not for situations where the bag is submerged. A number and a limit tell you more than a percentage does.

Before ordering

Roll it properly and roll it more than you think. Every claim on this listing is written round the condition that the closure has actually been made, and it is the only part of the bag that is under your control.

Availability

Selling at about 13 € on the German Amazon store when this page was checked.

The French and Italian Amazon price sits more than 1.6× above the cheapest store. That gap usually means a reshipper rather than a local seller, so those listings are kept out of the range above.

Catalogued on the American, British and Spanish Amazon stores with nobody selling it: the reference is there, the offer is not.

Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.

Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.

More dry bags

  • deuter Light Drypack stuff sack rolled shut with its buckle clipped

    deuter Light Drypack 15 stuff sack, 10,000 mm water column

    The only bag on this shelf to publish both the number of rolls its closure needs and the situation it is not built for, and the only one that names a limit at all.

    Stated volume
    15, from the model name Light Drypack 15 — the listing carries the figure in the name and does not restate it with a unit in the bullets
    Fabric
    Not published on the listing — the material is described only by what it withstands, not by what it is
    Denier
    Not published on the listing
    Coating
    Not published on the listing
    Seam construction
    Not published on the listing
    Closure type
    Roll closure with a buckle, rolled at least three times before the buckle is closed so the contents stay dry — stated, and the only roll count published on this shelf
    Stated water rating
    10,000 mm water column — stated, described as protecting against dust and heavy rain, with an explicit caution that the pack is not suitable for situations where it is submerged
    Weight
    Not published on the listing
    Purge valve
    Not published on the listing
    Amazon reference
    B0BP7JLZSC (same reference on 6 Amazon marketplaces)
    EAN
    4046051151786
    • Publishes the number of rolls the seal needs, which no other listing here does
    • States what it is not for — submersion — rather than leaving waterproof to cover everything
    • The fabric is never named, so a 10,000 mm figure sits on a cloth you cannot identify

    Best for: Heavy rain and a dusty boot, with the honesty to say it is not a canoe bag.

    ≈ $25 / £17 / 16 €
    Check price on Amazon
  • Mil-Tec Seals waterproof roll-top rucksack with padded shoulder straps and MOLLE webbing

    Mil-Tec Seals Dry Bag rucksack, 35 litres, 250D PVC and polyester

    This is a waterproof rucksack rather than a stuff sack — padded shoulder straps, a chest strap, a ventilated back and MOLLE webbing — and rucksacks are outside what this site covers.

    Stated volume
    Around 35 litres — stated in the title and repeated as roughly 35 litres in the bullets
    Fabric
    PVC and polyester — stated as hard-wearing and abrasion resistant
    Denier
    250D — stated
    Coating
    Not published on the listing — the material is described as coated without the coating being named, with PVC and polyester given as the material itself
    Seam construction
    Not published on the listing
    Closure type
    Roll-top — stated in the title and in the bullets, with no number of turns given
    Stated water rating
    Not published on the listing — the maker states it protects kit in wet conditions or brief submersion and calls the bag floating, with no standard and no figure
    Weight
    Approximately 1,180 g — stated, alongside dimensions of about 57 × 29 × 20 cm
    Purge valve
    Not published on the listing — side compression straps are described for securing the contents, which is not the same thing
    Amazon reference
    B083WRWZ81 (same reference on 6 Amazon marketplaces)
    EAN
    4046872398025
    • Publishes a weight and a set of dimensions together, which no other listing on this shelf does
    • Publishes a denier, one of only two bags here to do so
    • It is a rucksack, not a stuff sack, and this site does not cover what is worn on the back

    Best for: Reading as a comparison point, since the carrying system puts it outside this site’s scope.

    ≈ $96 / £55 / 59 €
    Check price on Amazon
  • NORDKAMM ultralight ROBIC nylon dry bags in three sizes

    NORDKAMM ROBIC nylon dry bags, 5, 10 and 15 litres, 10,000 mm

    The fullest fabric sheet on this shelf — a named nylon, a water column, sealed seams and a weight for each of the three sizes — with the closure itself never described.

    Stated volume
    5, 10 and 15 litres — stated as the three sizes offered
    Fabric
    ROBIC performance nylon, stated as 100 per cent recycled nylon from a closed material loop; the maker cites an official Martindale test to an ISO standard and says the yarn is six times stronger than standard polyester and three times stronger than standard nylon
    Denier
    Not published on the listing
    Coating
    Not published on the listing
    Seam construction
    Sealed — stated, alongside the water column figure
    Closure type
    Not published on the listing — the maker specifies the buckles by brand and describes their rubber compound and behaviour in extreme temperatures, and never says how the top is folded before they clip
    Stated water rating
    10,000 mm water column — stated
    Weight
    36 g at 5 litres, 50 g at 10 litres and 57 g at 15 litres — stated, size by size
    Purge valve
    Not published on the listing
    Amazon reference
    B08CY2W22K (same reference on 4 Amazon marketplaces)
    EAN
    4260513031304
    • A weight for every size offered, which no other listing on this shelf provides
    • A named fabric, a water column and a seam treatment together on one sheet
    • The closure itself is never named, so the roll count that makes the seal is unknown

    Best for: A pack counted in grams, where three sizes with three published weights can be chosen properly.

    ≈ 37 €
    Check price on Amazon

Others worth keeping in the pack

  • buxmed pack of five gold and silver emergency blankets in their sleeves

    buxmed pack of five gold-and-silver emergency blankets

    A five-pack that names its foil and its two face colours and then publishes not a single measurement — no size, no thickness, no weight and no packed size.

    Unfolded dimensions
    Not published on the listing — no measurement appears in the title or in any of the five bullets
    Material
    A metallised foil — the maker calls it a gold-and-silver metal foil and a reflective film, and names no polymer behind it
    Film thickness
    Not published on the listing
    Stated weight
    Not published on the listing — the maker calls the pack light and compact without a figure
    Packed size
    Not published on the listing — stated only as folding small
    Reusable
    Not published on the listing
    Colour of each face
    One silver face and one gold face — stated, and the maker describes what it says each face is for
    Amazon reference
    B0GL4NTQSF (same reference on 5 Amazon marketplaces)
    EAN
    4255841401813
    • Names both face colours and keeps the same arrangement across the title and the bullets, which one listing here does not
    • Describes the sheet as a metallised foil rather than leaving the construction to a photograph
    • Not one measurement anywhere: no unfolded size, no packed size, no thickness and no weight

    Best for: Stocking several sheets at once where the size of each is not the deciding factor.

    ≈ 10 €
    Check price on Amazon
  • E EASTSTORM four-layer emergency blanket set with rain poncho, folded

    E EASTSTORM four-layer emergency blanket set with rain poncho, 210 × 150 cm, 600 g stated

    A four-layer laminate at the far end of this shelf from a foil sheet: 210 × 150 cm, 600 g, a folded size, a poncho in the set, and no colour named for either face.

    Unfolded dimensions
    210 × 150 cm — stated in the title and repeated in the bullets; the rain poncho in the set is stated at 130 × 100 cm
    Material
    A four-layer construction — non-woven fabric and polyester fabric combined with an aluminium-Mylar coating, stated by the maker
    Film thickness
    Not published on the listing — the maker states four protective layers and gives no micron or millimetre figure for any of them
    Stated weight
    600 g — stated alongside the folded dimensions
    Packed size
    24 × 18 × 5 cm folded — stated by the maker
    Reusable
    Not published on the listing — the maker says it is more durable and less easily damaged than a conventional single-layer Mylar bag, without stating that it packs away again
    Colour of each face
    Not published on the listing — the maker describes what each side is for and calls the colour close to natural, without naming a colour for either face
    Amazon reference
    B0B3WTCSF3 (same reference on 6 Amazon marketplaces)
    EAN
    0768477243015
    • Names all four layers of the construction, which no other listing in this family attempts
    • Publishes the unfolded size, the folded size and the weight together, so the whole bulk of it is known before ordering
    • The heaviest of the four here that publish a weight, at 600 g against 60 g and 120 g elsewhere on this shelf

    Best for: A bulkier laminate for a car boot or a base kit, where 600 g is not the deciding number.

    ≈ £23 / 22 €
    Check price on Amazon
  • GIMA emergency blanket with a silver face and a gold face, folded in its sleeve

    GIMA single emergency blanket, 210 × 160 cm, 60 g stated

    Two of the seven columns filled cleanly — size and weight — on a listing whose title and bullets place the silver and gold faces three different ways.

    Unfolded dimensions
    210 × 160 cm — stated in the first bullet
    Material
    Not published on the listing — no film, foil or polymer is named anywhere in the title or the three bullets
    Film thickness
    Not published on the listing
    Stated weight
    60 g — stated in the first bullet, alongside the dimensions
    Packed size
    Not published on the listing
    Reusable
    Not published on the listing — the maker says nothing either way
    Colour of each face
    One silver face and one gold face — stated, but placed inconsistently: the title puts silver inside and gold outside, the second bullet has the gold face outside, and the third has the silver face outside
    Amazon reference
    B00DBU1FQE (same reference on 4 Amazon marketplaces)
    EAN
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    • Publishes both the unfolded size and the weight in a single line, which only one other listing here does as plainly
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    • Three sentences on the same listing place the two faces three different ways

    Best for: A single two-colour sheet at a published size and weight, where a maker reference matters.

    ≈ 5 €
    Check price on Amazon

All dry bags