80L IRR vs 120L Backpack Cover: Which Rain Cover Fits?
By Savotta – Load carrying equipment and sustainment systems | Published: 2026-11-01
Category: Comparisons
Compare the Savotta 80L IRR and 120L backpack covers on pack size, IRR material, and seam construction so you pick the right rain cover for your rucksack.
Quick answer
Choose the 80L IRR cover for large packs up to roughly 80 litres when you want near-infrared adapted material, and the 120L cover for extra-large rucksacks that need maximum coverage. Both use seamless construction and an adjustable elastic retention cord, so the deciding factors are pack volume and whether IRR matters to you.
Pack volume is the first filter
The 80L IRR cover is sized for large packs, while the 120L cover is sized for extra-large packs. That difference matters because a cover that is too small will not stretch over a fully loaded rucksack, and one that is far too large can flap or catch on branches. Match the cover to your pack's stated litre capacity before comparing materials.
If your pack sits near a size boundary, check whether you routinely overstuff it. A cover has to clear the packed shape, not just the nominal volume.
IRR material changes the use case
Only the 80L IRR model is listed as made from near-infrared adapted materials. That makes it the choice when reducing near-infrared signature is part of your kit requirements. The 120L cover is described as lightweight and waterproof but not as IRR, so treat it as a rain and snow cover rather than a signature-management layer.
This is a real trade-off: the IRR feature is tied to the 80L size in the supplied catalog, so you cannot get both the IRR material and the 120L capacity in one cover.
Seamless construction is shared, not a differentiator
Both covers use seamless construction, meaning there are no taped seams running along the cover. That removes a common leak point and keeps the cover simple to pack. Because both share this, do not use seam construction to choose between them; use size and IRR instead.
Both also have an adjustable elastic retention cord and tie-down toggle loops for securing the cover to your pack, so attachment method is the same across the two.
Trade-offs to weigh before you buy
- Capacity vs. IRR: The IRR material is offered on the 80L cover, while the 120L cover is the larger option without IRR. If your pack is over the large size range, you give up IRR to get the bigger fit. Decide which requirement is non-negotiable before checking pack volume.
- Coverage vs. bulk: The 120L cover is built for extra-large packs. On a smaller pack it may fit loosely, while the 80L IRR cover is intended for large packs and may not clear an overstuffed extra-large load. Measure your packed rucksack, not just its nominal litre rating.
- Shared features you can ignore: Both covers have seamless construction, an adjustable elastic retention cord, and tie-down toggle loops. These do not separate the two options, so base your choice on size and IRR only. Do not pay extra for seam or cord differences that do not exist.
Product facts
- Backpack cover, 80L IRR: Lightweight, waterproof backpack cover for large packs, made from near-infrared adapted materials. It gives you rain protection and an IRR layer in one accessory for packs in the large size range.
Backpack cover, 80L IRR - Backpack cover, 120L: Lightweight, waterproof backpack cover for extra-large packs. It covers rucksacks beyond the large size range without adding the IRR feature.
Backpack cover, 120L
Which cover fits your kit
Best for
- Hunters or field users with a large pack who need near-infrared adapted rain protection
- Users whose packed rucksack falls within the large size range and who want one cover for rain and snow
Not for
- Extra-large rucksacks that exceed the large size range, which should use the 120L cover
- Buyers who do not need IRR and want the largest coverage available
