SuperDry Mega Ripstop Tarp Backpack vs. STM Grace

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

SuperDry Mega Ripstop Tarp Backpack

Front facing view of the SuperDry Mega Ripstop Tarp Backpack
Capacity21 L
Weight0 kg
Dimensions45×35×15 cm
Airline fit93%
Price$75

Feature by feature

SuperDry Mega Ripstop Tarp BackpackFeatureSTM Grace
Storage
N Compression N
None Expanded Capacity None
4 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap N
Inside
17in Laptop 15in
6 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
Polyester100% polyester

STM Grace

by Stm
Front facing view of the STM Grace
Capacity20 L
Weight0.6 kg
Dimensions42×29×11 cm
Airline fit95%
Price$100

Key differences between the SuperDry Mega Ripstop Tarp Backpack and STM Grace

Both have: backpack straps, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 176 accept both. 0 accept only the SuperDry Mega Ripstop Tarp Backpack, and 4 accept only the STM Grace.

Only the STM Grace fits

Air Niugini, Cayman Airways, Regional Express, Virgin Australia.

SuperDry Mega Ripstop Tarp Backpack vs. STM Grace: which should you pack?

The SuperDry Mega Ripstop Tarp Backpack carries 1L more than the STM Grace (21L vs. 20L), and the two are closely matched on weight. For carry-on flexibility, the STM Grace fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the SuperDry Mega Ripstop Tarp Backpack; if you want to travel lighter, the STM Grace is the better call.