---
url: "https://onebag.travel/compare/rmtc4ecec0/exped-serac-25/vaqpdhhg3f/osprey-transporter-flap-pack/"
title: "Exped Serac 25 vs Osprey Transporter® Flap Pack"
description: "Exped Serac 25 vs Osprey Transporter® Flap Pack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/rmtc4ecec0/exped-serac-25/vaqpdhhg3f/osprey-transporter-flap-pack/"
---
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3.  Exped Serac 25 vs. Osprey Transporter® Flap Pack

# Exped Serac 25 vs. Osprey Transporter® Flap Pack

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

## [Exped Serac 25](https://onebag.travel/carryon/rmtc4ecec0/exped-serac-25/)

by [Exped](https://onebag.travel/carryons/?brands=Exped)

![Front facing view of the Exped Serac 25](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1623752011/carryons/Exped_Serac_25_u3g3qp.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>25 L</td></tr><tr><td>Weight</td><td>0.765 kg</td></tr><tr><td>Dimensions</td><td>55×25×21 cm</td></tr><tr><td>Airline fit</td><td>69%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Feature by feature

| Exped Serac 25 | Feature | Osprey Transporter® Flap Pack |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 3 | Opening | 3 |
| N | Passport | N |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| Y | Sternum Strap | Y |
| Inside |
| N | Laptop | 15in |
| 1 | Main Compartments | 1 |
| N | Organizer |  |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>420 D ripstop nylon, TPU film laminate, &gt;10'000 mm water column</td><td>400D Nylon TPU Double Coated</td></tr></tbody></table>

## [Osprey Transporter® Flap Pack](https://onebag.travel/carryon/vaqpdhhg3f/osprey-transporter-flap-pack/)

by [Osprey](https://onebag.travel/carryons/?brands=Osprey)

![Front facing view of the Osprey Transporter® Flap Pack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1631615046/carryons/Osprey_Transporter_Flap_Pack_qe7k2b.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>20 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>46×33×31 cm</td></tr><tr><td>Airline fit</td><td>13%</td></tr><tr><td>Price</td><td>$120</td></tr></tbody></table>

## Key differences between the Exped Serac 25 and Osprey Transporter® Flap Pack

-   **Laptop sleeve:** No on the Exped Serac 25; 15in on the Osprey Transporter® Flap Pack.
-   **Water bottle pockets:** No on the Exped Serac 25; 1 on the Osprey Transporter® Flap Pack.

Both have: backpack straps, hip belt, sternum strap, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 25 accept both. 106 accept only the Exped Serac 25, and 0 accept only the Osprey Transporter® Flap Pack.

### Only the Exped Serac 25 fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air France, Air India, Air Macau, Air Mauritius, Air Nostrum, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, British Airways, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Conviasa, Copa Airlines, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Great Lakes Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Island Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Onur Air, Pakistan International, Peach, PenAir, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, Spirit Airlines, SriLankan Airlines, Sun Country, Swiss Int'l Air Lines, Thai Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WOW Airlines.

## Exped Serac 25 vs. Osprey Transporter® Flap Pack: which should you pack?

The **Exped Serac 25** carries 5L more than the **Osprey Transporter® Flap Pack** (25L vs. 20L), while the **Exped Serac 25** is the lighter pack at 0.765kg (vs. 0.9kg). For carry-on flexibility, the **Exped Serac 25** fits 69% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Exped Serac 25; if you want to travel lighter, the Exped Serac 25 is the better call.