Home / Backpack / Comparison

Peak Design Outdoor Backpack 18L vs Peak Design Outdoor Sling 4L

Peak Design Outdoor Backpack 18L ($199.95) vs Peak Design Outdoor Sling 4L ($79.95) — side-by-side specs, weight, pros and cons to help you pick the right backpack.

Peak Design Outdoor Backpack 18L
Peak Design
Outdoor Backpack 18L
$199.95
Check Price →
Peak Design Outdoor Sling 4L
Peak Design
Outdoor Sling 4L
$79.95
Check Price →
Spec-by-spec
SpecPeak Design Outdoor Backpack 18LPeak Design Outdoor Sling 4L
Price$199.95$79.95
Weight1000g185g
Capacity18L4L
External47.6 x 27.5 x 15.5 cm31 x 17.5 x 5 cm
Weight1000g (1kg (2.1 lbs), Peak Design Specs tab)185g (185g (0.41 lbs), Peak Design Specs tab)
Pros & Cons

Peak Design Outdoor Backpack 18L

  • 1kg (2.1 lbs)
  • Lifetime warranty from Peak Design
  • 18L capacity
  • $199.95
  • Each size is priced separately

Peak Design Outdoor Sling 4L

  • 185g (0.41 lbs)
  • Lifetime warranty from Peak Design
  • 4L capacity
  • $79.95
  • Each size is priced separately
Peak Design Outdoor Sling 4L is the better value at $79.95. Both are part of our curated backpack index — tap through to check current pricing.
More Backpack comparisons
Alpaka Flight Sling vs Alpaka Elements Tote ProAlpaka Flight Sling vs Alpaka Zip ProAlpaka Flight Sling vs Alpaka Elements Tech Case Mini (X-Pac RX36)Alpaka Flight Sling vs Alpaka Metro Sling V2 — Horse EditionAlpaka Flight Sling vs Alpaka Momentum SlingAlpaka Flight Sling vs Alpaka Momentum Backpack