Calpak Sling Messenger 18-inch Sling Style Backpack

Included Warranty: 1 year Limited Manufacturer
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Starting at: $25.44
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    Calpak Sling Messenger 18-inch Sling Style Backpack
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    Carry all of your work or school materials in style with this sling messenger backpack. Featuring a unique shape and plenty of pockets, this sturdy bag transports everything you need to get you through the day. The shoulder strap is padded for comfort.


    ITEM#: 15533143

    The Calpak Sling Messenger provides convenient carrying capacity as well as style. The triangular pouch is available in several vibrant colors.

    • Materials: Ripstop
    • Color options: Black, blue, deep red, orange, purple
    • Dimensions: 18 inches high x 13.5 inches wide x 7.5 inches deep (1823 cubic-inch capacity)
    • Product weight: 1.4 pounds
    • One (1) main compartment
    • Buckled front pocket
    • Front accessory zipper pocket
    • Front organizer pocket
    • Self-repairing excel zippers
    • Padded single shoulder strap
    • Additional waist strap
    • Accessory pouch on padded shoulder strap
    • Model No: KB403


    Color Black Blue Orange Purple Red
    Material Nylon
    Pattern Solid
    Feature Multi-Compartment
    Dimensions See Description
    Warranty 1 year Limited Manufacturer
    Materials See Description
    Model Number KB403

    Product Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • day pack

      This was larger than I could use as a small person.

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    • much larger than I expected

      This backpack is much larger than I thought it would be from the pictures. It has a strap that goes around your waist that I did not realize was on it. I did not like the way the strap looked or felt. Color was nice and it looked like the bag was good quality, but I disliked the strap so much that I returned it.

      Read More
    • Nice Bag

      Grate Bag.....zipper kept getting hung up and stuck.....eventually permanently stuck and ripped. To bad really loved this bag

      Read More
    • perfect backpack

      this is the perfect sized backpack and very comfortable to carry. Perfect for a day at an amusement park or even a day hike - it holds quite a bit. the shoulder strap is nice and large and very padded for comfort. Definitely worth the ***.

      Read More
    • Nice Bag

      Full Size Sling Bag. Very sturdy bag. Used it as a carry on.

      Read More

    Questions & Answers

    Get your product questions answered right here.
    • Why did you choose this product?

      • Looks like what I need for my upcoming vacation

      • My old sling messenger backpack started to fall apart. This style works well for bicycle commuting.

      • its cool!

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    • Does this have a mesh water bottle holder?

      • Hello Peggy, no, this bag does not have a mesh water bottle holder. I hope this helps. Please let us know if you have any additional questions. Thank you for shopping with us!

    • Is the outside pocket secured with a snap buckle or strap buckle?

      • Thank you for your question danarv. The outside pocket is secured by a snap buckle. Have a great day.

    • 1) If a laptop were 15.1" x 11" x 1", would it fit in the main compartment? 2) Could an iPhone be slid/wedged/fit in the front-strap pouch?

      • Thank you for your inquiry, threedukes. Yes, your laptop and your iPhone should fit just fine. Please let us know if you have any other questions. Thank you for shopping with us.

    Shopping Guides

    Shipping & Returns


    Usually leaves our warehouse in 1 business day. *

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
    Standard shipping details
    Expedited shipping details

    * For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.