Vertx Any Day Backpack vs. The Brown Buffalo Conceal Pack 21L

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

Vertx Any Day Backpack

Front facing view of the Vertx Any Day Backpack
Capacity20 L
Weight0.7 kg
Dimensions42×28×18 cm
Airline fit96%
Price$130

Feature by feature

Vertx Any Day BackpackFeatureThe Brown Buffalo Conceal Pack 21L
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
front Passport front
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap removable
Inside
15in Laptop 15in
4 Main Compartments 2
Y Organizer N
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder N
Y Water Resistant Y
Material
Water-Resistant 100% NylonChallenge® Sailcloth EPX400

The Brown Buffalo Conceal Pack 21L

Front facing view of the The Brown Buffalo Conceal Pack 21L
Capacity21 L
Weight1.3 kg
Dimensions50×30×15 cm
Airline fit92%
Price$325

Key differences between the Vertx Any Day Backpack and The Brown Buffalo Conceal Pack 21L

Both have: passport pocket, luggage passthrough, backpack straps, laptop sleeve, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 173 accept both. 8 accept only the Vertx Any Day Backpack, and 0 accept only the The Brown Buffalo Conceal Pack 21L.

Only the Vertx Any Day Backpack fits

Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

Vertx Any Day Backpack vs. The Brown Buffalo Conceal Pack 21L: which should you pack?

The The Brown Buffalo Conceal Pack 21L carries 1L more than the Vertx Any Day Backpack (20L vs. 21L), while the Vertx Any Day Backpack is the lighter pack at 0.7kg (vs. 1.3kg). For carry-on flexibility, the Vertx Any Day Backpack fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the The Brown Buffalo Conceal Pack 21L; if you want to travel lighter, the Vertx Any Day Backpack is the better call.