Waterproof Laptop Liner Bag Polyester Case for 13 14 15 Inch Notebooks Black Sleeve with 23mm Thickness for Daily Commute and Travel
Waterproof Laptop Liner Bag in Black Polyester for 13, 14 and 15 Inch Notebooks

This waterproof laptop liner bag is a straightforward protective sleeve for carrying a notebook inside a backpack, tote, or other larger bag. Made from polyester, it is designed to offer a lightweight layer against splashes and dust while keeping the overall profile slim at 23mm thick. The bag comes in three sizes to suit 13-inch, 14-inch, and 15-inch laptops, with each size having its own length and width measurements. The black colour gives it a neutral appearance that fits easily with other work and travel accessories. Because it is a liner bag, it is intended as an inner sleeve rather than a standalone carrier with handles or straps. For students, office workers, and travellers who already use a main bag, this liner adds a simple extra layer of separation and protection for a laptop.
Features and Construction

The main construction details are the polyester material, the waterproof function, and the slim 23mm thickness. These combine to create a low-profile sleeve that can sit inside another bag without taking up much room.
Material and Build
The liner bag is made from polyester, a synthetic fabric chosen for this product to support its waterproof properties. Polyester is lightweight and is commonly used in bags and sleeves where a practical, low-maintenance material is needed. In this product, the material forms the outer layer that helps protect a laptop from splashes and dust. The 23mm thickness applies across all three sizes, keeping the sleeve slim enough to slide into a backpack or tote. No additional materials are stated in the source information.
Size and Practical Fit
The waterproof laptop liner bag is available in three sizes. The 13-inch size measures 352mm in length, 252mm in width, and 23mm in thickness. The 14-inch size measures 371mm in length, 265mm in width, and 23mm in thickness. The 15-inch size measures 396mm in length, 278mm in width, and 23mm in thickness. These measurements correspond to the stated screen sizes, so you can select the liner that matches your laptop. The slim thickness remains consistent across all three options.
Uses and Placement

This liner bag is designed for use inside another bag, making it suitable for commuting, travel, and everyday carrying. Its low-profile shape means it can be added to an existing bag setup without much change.
Event or Professional Use
For professional settings, the black polyester liner bag offers a discreet way to carry a laptop inside a work bag or briefcase. The waterproof function helps protect against light rain or accidental splashes during a commute. Because it has no handles or straps, it stays out of the way inside a larger bag and keeps the laptop separate from other items such as notebooks, chargers, and cables. This separation can help reduce scratches and everyday wear.
Everyday Home Use
At home, the liner bag provides a simple place to store a laptop when it is not in use. The polyester material can be wiped clean with a damp cloth, and the slim 23mm thickness means it can be stored on a shelf or in a drawer without taking up much space. The black colour keeps it looking tidy in any room. It is also useful for keeping a laptop dust-free between uses.
Benefits and Buying Value

The main benefits come from the waterproof polyester construction, the three available sizes, and the slim 23mm profile. These features support practical, everyday protection without adding bulk.
Reuse and Low Maintenance
The polyester surface is easy to wipe clean, which supports low-maintenance use over time. The waterproof function helps protect against splashes and dust, reducing the need for frequent deep cleaning. Because the liner bag is reusable, it can be moved between bags as needed. No specific care instructions beyond basic wiping are stated in the source information, so gentle cleaning with a damp cloth is the most suitable approach.
Why Choose This Product
This waterproof laptop liner bag is a practical choice for anyone who needs a simple inner sleeve for a 13-inch, 14-inch, or 15-inch laptop. The polyester material and waterproof function address common concerns about splashes and dust, while the 23mm thickness keeps the profile slim. The black colour is neutral and easy to pair with other accessories. It is not a standalone bag, so it is best suited to users who already carry a backpack, tote, or briefcase and want an extra layer of protection inside.

