KS Ultralight KS27 vs. Gossamer Gear Loris 25 Daypack

Two carry-on travel backpacks, compared spec for spec.

KS Ultralight KS27

Front facing view of the KS Ultralight KS27
Capacity27 L
Weight0.3 kg
Dimensions55×28×16 cm
Airline fit87%
Price$130

Feature by feature

KS Ultralight KS27FeatureGossamer Gear Loris 25 Daypack
Storage
2 Compression 4
None Expanded Capacity None
0 Opening 0
top Passport top
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable Sternum Strap Y
Inside
N Laptop N
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
X-pac VX 07 YKK "waterproof zip"70D Recycled Robic Nylon PFAS-free

Gossamer Gear Loris 25 Daypack

Front facing view of the Gossamer Gear Loris 25 Daypack
Capacity25 L
Weight0.6 kg
Dimensions46×28×17 cm
Airline fit95%
Price$135

Key differences between the KS Ultralight KS27 and Gossamer Gear Loris 25 Daypack

Both have: passport pocket, backpack straps, hip belt, water bottle pockets, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 164 accept both. 0 accept only the KS Ultralight KS27, and 15 accept only the Gossamer Gear Loris 25 Daypack.

Only the Gossamer Gear Loris 25 Daypack fits

Air Niugini, American Eagle, Belavia, easyJet, Etihad Airways, Liat Airlines, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Scoot, Tiger Airways, Virgin Australia, WestJet.

KS Ultralight KS27 vs. Gossamer Gear Loris 25 Daypack: which should you pack?

The KS Ultralight KS27 carries 2L more than the Gossamer Gear Loris 25 Daypack (27L vs. 25L), while the KS Ultralight KS27 is the lighter pack at 0.3kg (vs. 0.6kg). For carry-on flexibility, the Gossamer Gear Loris 25 Daypack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the KS Ultralight KS27; if you want to travel lighter, the KS Ultralight KS27 is the better call.