Curated list · Backpacks
Carry-on travel backpacks that open flat
We compared 8 packs that meet these criteria. The lightest is the tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L at 2.5 lb, and prices start at $89.99.
By Everyday LoadoutData checked 8 packs comparedHow we compare
At a glance
Side-by-side specs
| Pack | Capacity | Weight | Laptop | Water | Opening | Rating | From |
|---|---|---|---|---|---|---|---|
| tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L | 40 L | 2.5 lb · 1,120 g | 17.3″ | Not published | Clamshell | — | $99.99 |
| tomtoc UrbanEX-T77 Laptop Backpack 26L | 26 L | 2.6 lb · 1,190 g | 16″ | Water-resistant | Clamshell | — | $119.99 |
| tomtoc Navigator-T66 Travel Laptop Backpack 40L | 40 L | 2.6 lb · 1,200 g | 17.3″ | Not published | Clamshell | — | $89.99 |
| tomtoc UrbanEX-T77 Laptop Backpack 32L | 32 L | 2.8 lb · 1,280 g | 16″ | Water-resistant | Clamshell | — | $139.99 |
| Alpaka Traverse Backpack (30L) | 30 L | 3.3 lb · 1,500 g | 16″ | Water-resistant | Clamshell | $199 | |
| Aer Travel Pack 4 28L | 28 L | 3.5 lb · 1,597 g | 16″ | Not published | — | $239 | |
| Aer Travel Pack 4 35L | 35 L | 3.9 lb · 1,769 g | 16″ | Not published | — | $259 | |
| Alpaka Traverse Backpack (38L) | 38 L | 4.6 lb · 2,100 g | 16″ | Water-resistant | Clamshell | — | $269 |
Image not availableThe tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L is a 40 L, 2.5 lb pack that fits up to a 17.3-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is PFAS-free polyester.
It's the lightest of the 8 packs here, 980 g lighter than the heaviest. Worth knowing: sold by one retailer we track (tomtoc store).
- Capacity
- 40 L
- Weight
- 2.5 lb · 1,120 g
- Laptop
- Up to 17.3″
- Water
- Not published
- Opening
- Clamshell
- Fabric
- PFAS-free polyester
$99.99at tomtoc store, Black
Check price for the tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L at tomtoc store (opens in new tab)Full specs and sources for the tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Lockable zippers
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (tomtoc store)
Image not availableColor not published
The tomtoc UrbanEX-T77 Laptop Backpack 26L is a 26 L, 2.6 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is 400D polyester (840D base).
It's the second lightest of the 8 packs here. Worth knowing: sold by one retailer we track (tomtoc store).
- Capacity
- 26 L
- Weight
- 2.6 lb · 1,190 g
- Laptop
- Up to 16″
- Water
- Water-resistant
- Opening
- Clamshell
- Fabric
- 400D polyester (840D base)
$119.99at tomtoc store
Check price for the tomtoc UrbanEX-T77 Laptop Backpack 26L at tomtoc store (opens in new tab)Full specs and sources for the tomtoc UrbanEX-T77 Laptop Backpack 26LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Lockable zippers
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (tomtoc store)
tomtoc Navigator-T66 Travel Laptop Backpack 40L
Lowest price
Image not availableColor not published
The tomtoc Navigator-T66 Travel Laptop Backpack 40L is a 40 L, 2.6 lb pack that fits up to a 17.3-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is recycled fabric.
It's the third lightest of the 8 packs here and the least expensive here at $89.99. Worth knowing: sold by one retailer we track (tomtoc store).
- Capacity
- 40 L
- Weight
- 2.6 lb · 1,200 g
- Laptop
- Up to 17.3″
- Water
- Not published
- Opening
- Clamshell
- Fabric
- recycled fabric
$89.99at tomtoc store
Check price for the tomtoc Navigator-T66 Travel Laptop Backpack 40L at tomtoc store (opens in new tab)Full specs and sources for the tomtoc Navigator-T66 Travel Laptop Backpack 40LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (tomtoc store)
Image not availableColor not published
The tomtoc UrbanEX-T77 Laptop Backpack 32L is a 32 L, 2.8 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is 400D polyester.
It's the fourth lightest of the 8 packs here. Worth knowing: sold by one retailer we track (tomtoc store).
- Capacity
- 32 L
- Weight
- 2.8 lb · 1,280 g
- Laptop
- Up to 16″
- Water
- Water-resistant
- Opening
- Clamshell
- Fabric
- 400D polyester
$139.99at tomtoc store
Check price for the tomtoc UrbanEX-T77 Laptop Backpack 32L at tomtoc store (opens in new tab)Full specs and sources for the tomtoc UrbanEX-T77 Laptop Backpack 32LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Lockable zippers
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (tomtoc store)
Image not availableThe Alpaka Traverse Backpack (30L) is a 30 L, 3.3 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is Axoflux 400D ripstop nylon.
It's the fifth lightest of the 8 packs here. Worth knowing: sold by one retailer we track (Alpaka store).
- Capacity
- 30 L
- Weight
- 3.3 lb · 1,500 g
- Laptop
- Up to 16″
- Water
- Water-resistant
- Opening
- Clamshell
- Fabric
- Axoflux 400D ripstop nylon
- Review score
- 8.2 / 10
$199at Alpaka store, Black | Axoflux 400D Ripstop Nylon
Check price for the Alpaka Traverse Backpack (30L) at Alpaka store (opens in new tab)Full specs and sources for the Alpaka Traverse Backpack (30L)Lowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Luggage pass-through
- Side pocket fits XL bottles (40 oz insulated bottles)
Worth knowing
- Sold by one retailer we track (Alpaka store)
Image not availableThe Aer Travel Pack 4 28L is a 28 L, 3.5 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is 1680D CORDURA ballistic nylon.
It's the 5th lightest of the 8 packs here. Worth knowing: sold by one retailer we track (Aer store).
- Capacity
- 28 L
- Weight
- 3.5 lb · 1,597 g
- Laptop
- Up to 16″
- Water
- Not published
- Opening
- Not published
- Fabric
- 1680D CORDURA ballistic nylon
- Review score
- 8.8 / 10
$239at Aer store, Black
Check price for the Aer Travel Pack 4 28L at Aer store (opens in new tab)Full specs and sources for the Aer Travel Pack 4 28LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Load lifters
- Lockable zippers
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (Aer store)
Image not availableThe Aer Travel Pack 4 35L is a 35 L, 3.9 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is 1680D CORDURA ballistic nylon.
It's the 6th lightest of the 8 packs here. Worth knowing: sold by one retailer we track (Aer store).
- Capacity
- 35 L
- Weight
- 3.9 lb · 1,769 g
- Laptop
- Up to 16″
- Water
- Not published
- Opening
- Not published
- Fabric
- 1680D CORDURA ballistic nylon
- Review score
- 9.4 / 10
$259at Aer store, Black
Check price for the Aer Travel Pack 4 35L at Aer store (opens in new tab)Full specs and sources for the Aer Travel Pack 4 35LLowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Load lifters
- Lockable zippers
- Luggage pass-through
Worth knowing
- Sold by one retailer we track (Aer store)
Image not availableThe Alpaka Traverse Backpack (38L) is a 38 L, 4.6 lb pack that fits up to a 16-inch laptop, opens flat like a suitcase and fits common carry-on limits. The main fabric is Axoflux 400D ripstop nylon.
At 4.6 lb it's the heaviest of the 8 packs here and the most expensive here at $269. Worth knowing: heaviest pack in this list.
- Capacity
- 38 L
- Weight
- 4.6 lb · 2,100 g
- Laptop
- Up to 16″
- Water
- Water-resistant
- Opening
- Clamshell
- Fabric
- Axoflux 400D ripstop nylon
$269at Alpaka store, Black | Axoflux 400D Ripstop Nylon
Check price for the Alpaka Traverse Backpack (38L) at Alpaka store (opens in new tab)Full specs and sources for the Alpaka Traverse Backpack (38L)Lowest in-stock price as of Oct 25, 2026.
Stands out
- Opens flat like a suitcase
- Fits common carry-on limits
- Luggage pass-through
- Side pocket fits XL bottles (40 oz insulated bottles)
Worth knowing
- Heaviest pack in this list
- Sold by one retailer we track (Alpaka store)
Questions, answered from the data
What are the lightest carry-on travel backpacks that open flat?
The tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L is the lightest at 2.5 lb (1,120 g), by manufacturer spec.
What's the cheapest option?
The tomtoc Navigator-T66 Travel Laptop Backpack 40L, with a lowest in-stock price of $89.99 this week.
Which fits the biggest laptop?
The tomtoc Navigator-T66 Liteway Travel Laptop Backpack 40L and the tomtoc Navigator-T66 Travel Laptop Backpack 40L fit up to a 17.3-inch laptop, as stated by the brand. Check the sleeve dimensions on each product page.
Are any of these waterproof?
None are marketed as waterproof. The best stated protection here is water-resistant.
How we chose
This list includes every pack in our database that meets all of these criteria: fits 55 × 40 × 23 cm; clamshell or lay-flat opening; built for travel. Packs are sorted by manufacturer weight, lightest first. Nobody pays to be included.
Specs come from manufacturer pages (or, for brands whose own sites we can’t read, a retailer’s page) unless marked otherwise, and every value links to its source on the product page. Prices are the lowest in-stock price we found on Oct 25, 2026 and change often.
This is a spec comparison, not a hands-on review. Summaries are written with AI assistance from verified data only. Read our methodology.