# SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black

🧭 **Flexible capacity for trips that don’t fit one plan.**  
This expandable travel backpack adapts to your journey—compact when you need speed, spacious when you need room. Unzip to unlock up to 40L of storage, ideal for packing cubes, outfits, camera gear, and essentials for weekend escapes or short vacations. Airline personal-item sizing helps keep travel simple and stress-free.

📁 **Organized storage with serious protection.**  
A well-cushioned laptop compartment safeguards devices up to 17”, while multiple hidden pockets keep valuables discreetly stored. Included toiletry bags make it easy to separate grooming items, keeping the main compartment clean and organized throughout your trip.

🧳 **Designed to move the way you do.**  
A rear luggage belt slides over suitcase handles for smooth airport transitions, and a hidden anti-theft pocket protects passports, wallets, and IDs in crowded areas. When plans change, hideaway padded shoulder straps tuck neatly into the back panel—transforming the bag from a backpack into a briefcase-style carry with a side handle for flexibility.

🌧️ **Built for longevity, ready for everyday use.**  
Made from lightweight, water-resistant, anti-scratch polyester, this backpack handles light rain while staying breathable. Reinforced stitching and sturdy zippers support long-term use, whether you’re commuting, traveling for business, hiking, or camping. Backed by a reassuring after-sales promise, it’s a reliable companion you can count on. **Pack more when you need it—carry smarter every day.**

## Details

- **Price:** 59.95 USD
- **Vendor:** PulinGO
- **Type:** Luggage & Bags > Backpacks
- **Tags:** 17 inch laptop backpack, 40l carry on backpack, anti theft backpack, convertible backpack, expandable travel backpack, personal item travel bag, water resistant backpack, weekender backpack

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 59.95 USD | In stock |

## Images

- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black
- SINALIY Expandable 40L Carry-On Travel Backpack with Convertible Carry & 17” Laptop Sleeve – Black

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> Source: [PulinGO](https://www.pulingo.com/products/sinaliy-expandable-40l-carry-on-travel-backpack-black)
> Updated: 2026-05-21