Expandable 40L Travel & Hiking Backpack with USB & Waterproof Features

3-7 days
In Stock
Fast US Shipping
Free Returns
4-Day Delivery
If you order within 2 hours 0 mins
Arrives by Wednesday, Jun 5
View Cart
Please wait, we try to get a transaction confirmation as soon as possible.
Guaranteed safe checkout

Discover the Ultimate Travel Companion Embark on your next adventure with confidence and ease, thanks to our Expandable 40L Travel & Hiking Backpack. Designed for both men and women, this backpack is your all-in-one solution for weekend getaways, hiking trips, or daily commutes. Its versatile design and robust features make…


Your order will be delivered by the most reliable carriers


We offer fast no-contact shipping within the US on every order


If you’re not thrilled with your purchase, simply send it back for a full refund

Product Details
Item Specifics
Shipping & Delivery
About Us
Product Details

Discover the Ultimate Travel Companion

Embark on your next adventure with confidence and ease, thanks to our Expandable 40L Travel & Hiking Backpack. Designed for both men and women, this backpack is your all-in-one solution for weekend getaways, hiking trips, or daily commutes. Its versatile design and robust features make it a must-have for travelers seeking comfort, security, and convenience.

Key Features & Benefits

  • Expandable Storage: Effortlessly switch between a compact 28L capacity and an expanded 40L space, accommodating everything from daily essentials to gear for days-long travels.
  • Waterproof Durability: Crafted from high-quality waterproof nylon, your belongings stay dry and secure, no matter the weather.
  • Comfortable Carry: Experience unparalleled comfort with our ergonomically designed arcuate shoulder straps, promoting air circulation and reducing back pressure.
  • Convenient USB Charging: Stay connected with the integrated USB port, allowing you to charge your devices on-the-move without opening your backpack.
  • Travel-Ready: Designed to meet flight carry-on standards, this backpack also features a quick-access zipper for hassle-free airport security checks.
  • Anti-Theft Features: Keep your valuables safe with a hidden back pocket, perfect for storing phones, wallets, and important documents.
  • Multipurpose Design: With multiple compartments, including specialized laptop pockets and a wet bag, organize your items efficiently for any occasion.

Why Choose Our Backpack?

What sets our backpack apart is not just its versatility and feature-rich design, but also its commitment to making your travel seamless and stress-free. Whether you’re exploring city streets, trekking through mountains, or simply heading to work, this backpack adapts to your needs. The waterproof material, expandable capacity, and ergonomic carrying system are thoughtfully combined to cater to the dynamic lifestyles of modern adventurers. Its multifunctional nature makes it an ideal choice for anyone looking for a reliable, stylish, and practical backpack that keeps up with their active lifestyle.

Get Ready to Explore

With this backpack, you’re always prepared for the next adventure. Its durable construction, smart design, and travel-friendly features ensure that you can focus on enjoying your journey, worry-free. Don’t let anything hold you back from experiencing the world. Grab your backpack today and embark on your next great adventure!


  • Over 37,000 happy customers across the US
  • Real people on our support team ready to help
  • The finest materials and stunning design — all our products are developed with an obsessive dedication to quality, durability, and functionality
  • We use the most secure online ordering systems on the market, and are constantly improving our software to make sure we offer the highest possible security


Our mission is to make your shopping experience as safe and enjoyable as possible. Have questions? Feel free to contact our award-winning customer care team for advice on everything from product specifications to order tracking.

  • Money back guarantee: Something not quite right? If you’re not totally satisfied with your purchase, you can return it within 15 days for a full refund
  • Risk-Free Purchase: We utilize industry-standard Secure Sockets Layer (SSL) technology to allow for the encryption of all the sensitive information, so you can be sure your details are completely safe with us
  • Trustworthy payment method: We partner with the most popular online payment solutions that guarantee enhanced security and fast transaction processing
Item Specifics
Shipping & Delivery

How much does shipping cost?

We are glad to bring our customers great value and service. That’s why we provide fast shipping from our Fulfillment Center in California by UPS and USPS.

What countries are you delivering to?

United States, Canada, Australia, United Kingdom, and Japan.

How can I track my parcel?

Once your parcel has left our Fulfillment Center, you will receive an email with a tracking number to monitor your parcel movements.

Can you ship my order to a business address?

Yes, you can write your business address in your order details if it’s more convenient to you.

Can you ship my order to a PO Box address?

Yes, you can select delivery to a PO Box if it’s more convenient to you.

Can you ship my order to APO or FPO military addresses?

Yes, we ship anywhere in the United States, and to all US territories and military APO/FPO addresses.

What happens to my parcel if it is delivered while I’m not there?

Depending on the destination and the package size, your parcel will be left in your mailbox or on your porch, or it may be left with a neighbour.


How to search for products?

Simply type the product name in the Search Bar at the top of any page. Try to enter a general description. The more words you use, the less products you will get on the results page. When you find a product you’re interested in, simply click on its name or image for more details.

Do I need to create an account to place an order?

It’s not a must: you can place your order even if you don’t have an account or aren’t logged in..

How do I place an order?

On the product page with the item you like, select the color or other product variation (if there are any) that you like the most, and click on the Add to Cart button.

As soon as you’ve added everything you wanted to your cart, click on the Proceed to Checkout button.

You will see the list of items you’re ordering, and will be able to remove, add, or edit anything if necessary.

Make sure your shipping details are filled in correctly, and click on the Complete Order button. Finally, select the payment method that’s most convenient to you, and check out.

How do you protect my personal details when I register and check out?

We offer the highest security possible at all times to make sure the online transactions keep your personal information safe..

Following the industry standards, we use the Secure Sockets Layer (SSL) technology to encrypt the information you share with us such as your name, address, and payment details..

Can I buy your items and send them to someone as a gift?

Yes! Simply use this person’s address as the shipping address when you place an order. There will be no price tags on or within the package!.

Can I change or cancel my order?

Yes, if your order has been paid and you need to change or cancel it, you can do this within 12 hours of placing it..

To edit your order details or cancel the purchase, simply use the Contact Us form to send us an email..

An item is missing, wrong, or damaged in my package. What should I do?

We're sorry it’s happened to you! Kindly use the Contact Us form to get in touch with us and tell all the order details so that we could sort it out for you..

About Us
Customer commitment

We’re a company with a customer-obsessed culture and try to meet and exceed your expectations every time you shop our store. Your opinion is our biggest drive for improvement. Feel like a true insider with our exclusive offers and closed promotions.

Passion for our work

We're real fans of what we do! Our store is full of amazing carefully hand-picked products that you won’t find anywhere else, that’s for sure.We strongly believe that great stuff shouldn’t cost a fortune that’s why you can trust us to offer goods for every budget.

Inspiration and creativeness

Get the treat that you deserve and indulge yourself in your favorite merch, we cater for all tastes. Shopping has never been more enjoyable!


There are no reviews yet

Write a Review
Please accept Terms & Conditions by checking the box

On all orders including Standard Shipping


No questions asked return policy

NEED HELP? support@caroptima.com

We're always there for you


Worry-free shopping


Free Standard Shipping


Shopping cart