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Mil-Tec Modular sleeping bag cover, 3-layer laminate review

A generously cut laminate cover that publishes its water column, its packed size and its weight — and calls its membrane breathable without ever putting a number on it.

The bottom line A cover that describes its zip, its hood and its packed size properly, then stops at the word breathable. That word is the whole gap.

What this listing puts on record

A coyote sleeping-bag cover in a 3-layer laminate, stated at 225 × 85 cm with a 5,000 mm water column, an integrated hood, a two-way side zip under a press-stud storm flap, a packed size of 40 × 8 cm and a weight of approximately 1,300 g. A stuff sack is supplied.

What is well documented

The closure, unusually. Most covers in this hub say nothing about how you get in; this one names a two-way zip, its position, the storm flap over it and the fasteners on that flap. The hood is described with its adjustment. And both the packed size and the weight are published.

The gap

Breathability. The membrane is called breathable and there is no figure — not a moisture vapour rate, not a RET value, and no test named. Read against the hub intro, that is the specification the purchase actually turns on, and it is the one that is missing.

Denier and seam treatment are also absent, so abrasion resistance and whether the seams are sealed are both left open.

Before ordering

Weigh 1,300 g against what it replaces. A cover of this weight is a decision about the whole sleep system, not an accessory to it.

Availability

Selling between 53 € and 59 € across the German, French, Italian and Spanish Amazon stores when this page was checked.

It also sells on the American and British Amazon stores in the local currency, which the range above does not cover — that range counts euro stores and nothing else.

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.

What it does well, and where it gives way

Strengths

  • Publishes a water column, a packed size and a weight, which is three of the four figures this purchase turns on
  • The closure is described in full: a two-way side zip with a storm flap on press studs, and an adjustable hood
  • 225 × 85 cm is stated as a loose cut, which is what stops a cover compressing the insulation it is meant to protect

Compromises

  • Calls the membrane breathable and publishes no figure for it — the exact claim this hub exists to flag
  • At approximately 1,300 g it is more than three times the weight of the lightest fully specified cover here
  • No denier and no seam treatment stated, so the two things that decide how long it lasts are both absent

Specifications

Fabric3-layer laminate with a breathable membrane — stated; the face fabric is not named
DenierNot published on the listing
Hydrostatic head5,000 mm water column — stated
Breathability figureNot published on the listing — the membrane is called breathable and no figure is given
Breathability test namedNot published on the listing
Seam tapingNot published on the listing
ConstructionFlat cover, 225 × 85 cm, with an integrated hood adjusted by elastic and hook-and-loop; no pole is listed
Entry and closureTwo-way side zip with an overlying storm flap on press studs — stated
Packed size40 × 8 cm — stated
WeightApprox. 1,300 g — stated; the listing does not say whether the figure includes the supplied stuff sack
Amazon referenceB015ZRYLKW (same reference on 6 Amazon marketplaces)
EAN4046872342318

What people ask before buying

Is a breathable membrane without a figure worth anything?

It tells you the construction is a laminate rather than a coated film, which is a real difference. What it does not do is let you compare this cover with any other, because there is no number to compare. In a hub where two listings publish a figure, the word on its own is the weaker claim.

Why does the loose cut matter?

The maker states the 225 × 85 cm cut is deliberately roomy. A cover that presses on a sleeping bag flattens the insulation underneath it, and the extra width is what the maker says it is buying.