Rain is rarely the problem; your own moisture usually is · review
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
Fabric
3-layer laminate with a breathable membrane — stated; the face fabric is not named
Denier
Not published on the listing
Hydrostatic head
5,000 mm water column — stated
Breathability figure
Not published on the listing — the membrane is called breathable and no figure is given
Breathability test named
Not published on the listing
Seam taping
Not published on the listing
Construction
Flat cover, 225 × 85 cm, with an integrated hood adjusted by elastic and hook-and-loop; no pole is listed
Entry and closure
Two-way side zip with an overlying storm flap on press studs — stated
Packed size
40 × 8 cm — stated
Weight
Approx. 1,300 g — stated; the listing does not say whether the figure includes the supplied stuff sack
Amazon reference
B015ZRYLKW (same reference on 6 Amazon marketplaces)
EAN
4046872342318
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.
Emergency bag · sold as a pair · PE film with aluminium-coated inner · 213 × 91 cm · 115 g stated · 120 dB whistle
An emergency survival bag sold in twos with a whistle sewn in — it names its film and gives a weight, and publishes nothing about breathability or closure.
Best for: A kit where a named material and a published weight are wanted from an emergency bag.
Sleeping-bag cover · 3-layer Gore-Tex · polyamide face and lining, PTFE membrane · 243 cm long, 98 cm shoulder · central zip · no weight or packed size
A 3-layer Gore-Tex cover that names every layer of its construction and publishes neither a waterproof figure, a breathability figure, a weight nor a packed size.
Best for: A winter sleeping bag that needs a long, wide cover and where the membrane name is the specification being bought.
One-person bivy shelter · two aluminium poles · PU 5000 mm flysheet · sealed and double-stitched seams · 215 × 75 × 61 cm · 1.3 kg complete, stated
A poled one-person shelter sold as a bivy, publishing a flysheet water column, sealed seams and a complete-set weight — with no fabric named and no breathability figure.
Best for: A solo pitch where head room and a sealed floor matter more than packing small.