Drive with Ease · waterproof roof bags, with or without a rack

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  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 2
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 3
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 4
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 5
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 6
  • Asinking Triple-Reinforced Roof Bag, 21 Cu Ft — view 7

Ten years of fixes in one bag

Asinking Triple-Reinforced Roof Bag, 21 Cu Ft

4.3 · 371 shopper reviews

Size
21 cu ft
Color
Black with Grey

$129.99price seen September 27, 2026

We've made roof bags for ten years across more than fifteen series, and this one carries over a thousand small fixes from them. The straps and buckles are sized for 70 to 80 mph, and there's room for four sleeping bags, four suitcases and two tents, with space left for snacks.

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  • Heavy-duty straps and oversized buckles keep it planted at 70–80 mph.
  • 900D abrasion-resistant PVC with triple-reinforced seams, so it won't rip and won't leak.
  • 52 × 40 × 18 in when full; fits roofs longer than 58 in and wider than 42 in.
  • A thick rubber mat and padded door hooks protect roof paint and door frames.
  • In the box: bag, non-slip mat, combination lock, 6 door hooks, storage bag, manual.
Triple-Reinforced 21 Cu Ft — what a family actually brings

What a family actually brings

Four sleeping bags, four suitcases and two double tents is the load we size it for. It's what a family of four hauls to a campground, and it all rides up top.

Triple-Reinforced 21 Cu Ft — metal loops, any roof

Metal loops, any roof

Crossbars, side rails, a basket or nothing at all: the metal loop straps adapt to whatever your roof has.

Spec sheet

Capacity
21 cubic feet
Size (full)
52 × 40 × 18 in
Roof needed
Longer than 58 in, wider than 42 in
Material
900D PVC, triple-reinforced
Highway rating
Stable at 70–80 mph
In the box
Bag, mat, lock, 6 door hooks, storage bag, manual

Questions from the road

Will it fit my sedan?

Measure the roof: if it's longer than 58 inches and wider than 42, you're set. Smaller roofs suit our 15 cubic foot size.

How does it fold for storage?

Flat, into the included storage bag, and it slips under a garage shelf.

Also riding up top

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