STM Trilogy vs. Kathmandu Cotinga Kid's Pack
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Trilogy | Feature | Kathmandu Cotinga Kid's Pack |
|---|---|---|
| Storage | ||
| N | Compression | Y |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | N |
| Inside | ||
| 15in | Laptop | N |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | 100% Polyester |
Kathmandu Cotinga Kid's Pack
| Capacity | 20 L |
| Weight | 0.42 kg |
| Dimensions | 41×27×20.5 cm |
| Airline fit | 76% |
| Price | $60 |
Key differences between the STM Trilogy and Kathmandu Cotinga Kid's Pack
- Compression straps: No on the STM Trilogy; Yes on the Kathmandu Cotinga Kid's Pack.
- Laptop sleeve: 15in on the STM Trilogy; No on the Kathmandu Cotinga Kid's Pack.
- Water bottle pockets: 2 on the STM Trilogy; 1 on the Kathmandu Cotinga Kid's Pack.
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. 142 accept both. 36 accept only the STM Trilogy, and 2 accept only the Kathmandu Cotinga Kid's Pack.
Only the STM Trilogy fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.
Only the Kathmandu Cotinga Kid's Pack fits
Great Lakes Airlines, Gulf Air.
STM Trilogy vs. Kathmandu Cotinga Kid's Pack: which should you pack?
The STM Trilogy carries 4L more than the Kathmandu Cotinga Kid's Pack (24L vs. 20L), while the Kathmandu Cotinga Kid's Pack is the lighter pack at 0.42kg (vs. 0.64kg). For carry-on flexibility, the STM Trilogy fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Trilogy; if you want to travel lighter, the Kathmandu Cotinga Kid's Pack is the better call.