--- product_id: 521645670 title: "Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle" brand: "nst box" price: "28817 kr" currency: ISK in_stock: true reviews_count: 12 url: https://www.desertcart.is/products/521645670-expandable-travel-backpack-flight-approved-40l-carry-on-backpack-lightweight store_origin: IS region: Iceland --- # 40L capacity 500ml water bottle anti-theft design Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle **Brand:** nst box **Price:** 28817 kr **Availability:** ✅ In Stock ## Summary > Pack it, Expand it, Own it! 🌍 ## Quick Answers - **What is this?** Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle by nst box - **How much does it cost?** 28817 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/521645670-expandable-travel-backpack-flight-approved-40l-carry-on-backpack-lightweight) ## Best For - nst box enthusiasts ## Why This Product - Trusted nst box brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Waterproof and anti-theft features keep your valuables secure. - • **Travel Smart:** Multiple compartments for effortless organization. - • **Stay Hydrated:** Includes a sleek 500ml water bottle for on-the-go refreshment. - • **Expand Your Adventure:** Transform from 20L to 40L for all your travel needs! - • **Comfort Meets Durability:** Ergonomic design with robust materials for long-lasting use. ## Overview The Expandable Travel Backpack is a versatile 40L carry-on solution designed for both men and women. It features a lightweight, water-resistant design, multiple compartments for organization, and includes a 500ml water bottle. With an anti-theft back pocket and ergonomic support, this backpack is perfect for 5-7 days of travel, ensuring you stay organized and secure on your adventures. ## Description Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle ## Features - The Backpack comes with a water bottle of 17oz (500ml) - EXPANDABLE DESIGN Before extended is 20L, the dimensions are 17.5x11.4x7,4inch (45x29x19 cm); after extended is 39L. You can expand the strap and buckles according to your requirement. The two handles are set on top and one side, allowing an easy switch between backpack and suitcase. Either it can be carried vertically or horizontally. The belt on the back provides slide over the luggage, the bag is very easy to carry, and it is excellent for 5-7 days of daily travel. - LARGE CAPACITY EASY TO CARRY-ON The backpack has many compartments for organization and expansion. The main pocket can hold your travel goods and fit 10 pcs of clothes. It is cool that there is a wet pouch for liquids. The front compartment can also hold magazines, iPad, and books. One 17-inch laptop can fit in the back pocket (please check your laptop size). Backpack’s back with padded batter can protect your laptop. - WATERPROOF & ANTI-THEFT DESIGN Backpack’s back zipper pocket protects your precious items, such as your phone, passport, and wallet, from potential theft when travelling or lining up. Waterproof PVC material, an internal waterproof pouch to protect your goods from water. Ergonomic airflow back design with thick but soft multi-panel ventilated padding for added support and comfort, decreasing the pressure on the shoulder and neck. - DURABLE & MULTIPURPOSE Bold line sewing has been used at the handle and shoulder joints to increase durability. The two thick handles are comfortable for long-time carrying. All the zippers are durable, smooth, and waterproof resistant. Different compartments of varying sizes and characteristics allow you to store items easily and neatly. ## Images ![Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle - Image 1](https://m.media-amazon.com/images/I/51NYEjuXNLL.jpg) ![Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle - Image 2](https://m.media-amazon.com/images/I/81zX94l9xjL.jpg) ![Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle - Image 3](https://m.media-amazon.com/images/I/81UwC9SbQEL.jpg) ![Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle - Image 4](https://m.media-amazon.com/images/I/61HVLgRbSwL.jpg) ![Expandable Travel Backpack, Flight-Approved 40L Carry On Backpack, Lightweight Water Resistant Laptop Backpack for Men and Women, Includes 500 ml Water Bottle - Image 5](https://m.media-amazon.com/images/I/71W1kM8RBAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Amazong backpack *by A***K on Reviewed in the United States on May 6, 2024* Good quality, loads of space. Comes with a thermoflask and a strap to attach a key.A little on the big sideBut I think it will last me a while. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Great backpack, labels in Chinese *by S***Y on Reviewed in the United States on May 13, 2023* I really like this backpack! I can fit a ton of stuff in it; it's a great size and easy to zip up. It's high quality, and the lock is a nice feature. All the tags appear to be in Chinese, and same with the website the QR code takes you to, but that's not too big of a deal. ### ⭐ 1.0 out of 5 stars Mala calidad *by P***O on Reviewed in the United States on January 18, 2024* No vale 100 dólares. Esto en China te sale en 5 usa ## Frequently Bought Together - NST BOX Business Smart Professional Lightweight Backpack, Extra Large 40L Flight Approved Water Resistant Durable 17-inch Laptop Backpacks, Black, X-Large, Travel Backpacks - Insulated Lunch Bag - Reusable Lunch Box - Insulated Lunch Container Cooler Bag for Women&Men&Kid Office Work School Picnic Hiking (Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/521645670-expandable-travel-backpack-flight-approved-40l-carry-on-backpack-lightweight](https://www.desertcart.is/products/521645670-expandable-travel-backpack-flight-approved-40l-carry-on-backpack-lightweight) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-04-24*