53,90 kg53,90 kg CO₂e carbon compensation
Leather Backpack with External 15.6" Laptop Pocket - Night blue
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 2
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 3
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 4
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 5
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 6
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 7
Leather Backpack with External 15.6" Laptop Pocket - Night blue - photo 8

Blue Square

Leather Backpack with External 15.6" Laptop Pocket

CA6817B2-BLU2· NIGHT BLUE

Shipping ready in 24h /48h if customized

Dimensions
32 × 42 × 14 cm
Weight
1,59 kg
Can contain
15.6"
VAT included

HK$ 4,610.00 VAT included

36 MONTHS

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Blue Square

Product Features

Blue Square travel backpack: 18.5 L of packing space, shock-absorbing laptop protection, RFID-blocking lining and a pocket ready for a Bluetooth® tracker.

Number of compartments
AirPods® pocket
Pockets for induction charging
Power bank pocket
Product code
Internal organisation
Number of compartments
3
Can contain
15,6" notebook
PC holder features
Shock Absorber
AirPods® pocket
Yes
Materials and sustainability
Material
leather
Internal lining
100% Polyester
Carbon Neutral
53,90 kgCO2eq
Security and technology
Handle type
sewn
Pockets for induction charging
Yes
Power bank pocket
Yes
Equipped with customizable Tag
Yes
Other features
Dimensions
32 × 42 × 14 cm
Weight
1,59 kg
Capacity
18.5 L
Product code
CA6817B2

Product Tests

  • Product test

    • Handle test

  • Leather tests

    • pH test
    • Veslic test
    • Water staining
    • Tape test

  • Metal accessories

    • Oxydation test
    • Salt test
    • Cross cut test

The tests we perform

Every product undergoes a series of laboratory checks before entering production.

  • Product test

    Handle test

    The purpose is to evaluate the strength and resistance of the handles and straps. After the product is loaded, it is closed and its handle or strap is fixed to the test machine's “J-hook” and subjected to numerous stresses.

  • Leather tests

    pH test

    This allows for the determination of the actual pH value of leather, which should be between 3.5 and 4.5.

    Veslic test

    It's useful to estimate the resistance of any type of leather to wearing, scraping or colour rubbing. The leather sample is tested dry, damp and also under a removable weight of 1 kg.

    Water staining

    The leather's response to stains is determined by pouring small drops of water on its surface and then checking it every 30 minutes and after 24 hours. No stain, mark or wave is allowed on the leather.

    Tape test

    Checks the resistance of the leather's finish. A layer of adhesive tape is applied and the leather is checked after it has been ripped off.

  • Metal accessories

    Oxydation test

    The metal accessory is placed in an environment with a very high moisture content and a controlled temperature of 65°C, in contact with a leather sample (element with acidic pH). The resistance time is 96 hours. The test is used to highlight any oxidation of the accessory which, of course, is not permitted.

    Salt test

    The metal accessory is placed in a special machine where a salt spray with 50% sodium chloride concentration is sprayed at a controlled temperature of 35°C for a period of 24 hours. The test is used to highlight any oxidation of the accessory which, of course, is not permitted.

    Cross cut test

    The surface finish of the accessory is cut with a special blade, until it reaches the metal layers below. The cuts are made close to each other and checkerboard style, to create smaller finishing surfaces and therefore those that are more susceptible to detachment, as if they were small flakes. Subsequently, a dedicated adhesive is applied and removed once it has totally dried: the finish should not detach.

Product Maintenance
Maintenance of leather parts

The leather is a "live" material, so any small imperfections, spots or grains are a distinctive feature of the leather and guarantee the absence of synthetic finishing substances. To maintain the original characteristics of the leather unaltered over time, we recommend using only specific neutral wax-based fluid products that do not contain solvents, benzene or alcohol for its cleaning.
Use a small quantity of product on a soft cloth, never directly on the leather, and apply it gently on the area with small circular movements. Do not immerse the product in water. If it comes into contact with water, dry it quickly by dabbing with a dry cotton cloth, without rubbing. Do not expose the product to sources of direct heat. Do not iron. Remember that leather might release traces of colour as a result of repeated rubbing on clothing. For manteinance and cleaning you can buy our Cleaning kit for leather and fabric.
Maintenance of fabric part

To clean the fabric, we recommend you use a damp sponge with water and mild soap. Do not use soap or water directly on the product. Gently rub the fabric and then rinse with a clean damp sponge, then dab with a cotton cloth. Let the fabric dry while avoiding direct contact with sources of heat or sunlight.
We recommend that you pad the product well while it is drying to help it retain its original shape. If after cleaning slight marks or areas having a slightly different colour should appear, perform the procedure on a larger surrounding area to make sure the product has a uniform appearance. To avoid marks or discolouration, do not use chemicals or solvents of any kind. Do not iron. Do not dry clean.
For manteinance and cleaning you can buy our Cleaning kit for leather and fabric.

Product Warranty
Piquadro offers private customers a 24-month warranty on its products that covers any material and/or manufacturing defects. The warranty will be extended to 36 months if you have completed registration with the PQ-Club by completely filling in the form contained in the product tags, signing it and returning it to us.
Registration can also be done online, on the Piquadro website, in the My Piquadro section accessible by clicking the Login button at the top right of the home page.
Remember to authorise your consent to the processing of your personal data and then register your products filling the form "Register you product".

Material Details

The Blue Square collection is made of tanned calfskin. This traditional tanning method maintains the beauty of the leather over the years. The raw cut edges that are hand-painted in blue enliven the business character of the collection and are a highly recognisable distinctive element.

Discover the Blue Square Collection

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