Save for Later
Want to know when you'll get it? Go

What is “Estimated Delivery Date?”

This is an approximate delivery date and is not a guarantee. Delivery estimates are available only for select items to be delivered in the contiguous United States, excluding APO/FPO addresses and PO boxes. Your final shipping cost will be available at checkout.

Overstock.com MasterCard®

$20 bonus after first use & 0% Intro APR*
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›

CalPak Spider 18-inch Backpack with Front Buckled Pocket

Overall Rating Rating 4.6  |  10 reviews  |  Write a review
Today $32.99
Save $8.91 (21%)
Item #: 11519025
    Carry your belongings in this compartmentalized backpack from CalPak. A front organizer pocket, accessory pocket and removable cell phone pocket offer tremendous convenience. A convenient MP3 port lets you listen to your favorite tunes with ease....more

People Who Viewed This Viewed

Sponsored Links What's This?
    • Enjoy a new level of comfort as you carry your belongings in a CalPak backpack
    • Backpack boasts a front organizer pocket
    • Bag features self-repairing excel zippers
    • Easy grip top handle
    • Front pocket with buckles
    • MP3 player earphone port
    • Front accessory pocket
    • Detachable cell phone pocket
    • Product Dimensions: 18 inches high x 13 inches long x 8 inches deep
    • Weighs 2 pounds 8 ounces
    • Model number K901
18 in. H x 13 in. L x 8 in. D
Polyester, Ripstop
Model No:
Brand: CalPak


  • Color
    Black, Blue, Green, Orange, Purple, Red
  • Material
    Fabric, Polyester
  • Backpack Type
    Kid's, Lightweight, Other, Utility
  • Exterior Pocket
  • Interior Pocket
  • Pack Access
    Side, Top
Was this product information helpful?
Yes No
Thank you for your feedback.
Thank you. Your feedback will help us create the best experience for our customers.

Showing 3 most helpful reviews on this product.

  • 5 Stars 6
  • 4 Stars 4
  • 3 Stars 0
  • 2 Stars 0
  • 1 Stars 0
  • Best Backpack I had in a long time

    This backpack is my favorite backpack I ever had. My tablet fits in the second pocket perfectly and thats all I really care about my cellphone fits in the pocket too but I dont think it will fit an iphone or a blackberry.It does not fit alot of big binders but once again its perfect for me cuz I only carry notebooks and folders. I dont like how there is no place to put a drink. One of my favorite things is the CalPack Spider's sleek design. I got mine in my favorite color red and I am loving it. This pack is also great for sleepovers and does not wear out quickly. (Mine did not wear out yet). This Backpack can even handle the crazy terrain of Africa and Hawaii. I HIGHLY recommemd the CalPack Spider.

    • Please tell us about the quality of the product. Very Nice
    • Was the product free of any manufacturer defects? Yes
    • Would you recommend this to a friend? Yes
  • cal pack backpack

    Great backpack. Rugged, durable. Top handle is flexible. Zippers are strong and not breaking. Holds a lot, but is light so does not get too heavy. Padding for a child's back is wonderful. More padding than had on any other backpack.

    • Would you recommend this to a friend? Yes
  • Spider Backpack

    Good, sturdy backpack. Arrived in a reasonable amount of time. Daughter & son are very pleased with their new backpacks. Lots of room for their supplies.

    • Would you recommend this to a friend? Yes
View All Most Helpful Reviews
  • My Second Purchase

    I first starting using the “CALPAK Spider” backpack as a handy down from my son; off course he needed a new backpack for every school year. I have used it now for four years on my 100 mile per day motorcycle ride to work and back. I ripped the side after getting it caught on an object in my garage, and after looking at many other styles to replace it with, I finally decided to go ahead and repurchase the same bag. It is light weight, durable, and the compartments have met my needs very well. The number one seller for me, because of my motorcycle use, was the airflow technology and the padding it provides while resting on my back. A great purchase for the price, and I believe if you want better, you will need to spend twice as much.

    • Would you recommend this to a friend? Yes

    rff1967 from NC, Mar 1, 2014

  • The product came as advertised

    The product was reasonably priced. There is value for the money. Similar product even in discounted stores would cost more. I know. I shopped for a backpack in stores before I went online. The only reason I did not give it an excellent rating is that I just bought it. I am going to bring it for a trip abroad. If the zipper holds out and for how long I can give a more accurate assessment on the quality.

    • How accurate was the sizing? accurate
    • Please tell us about the quality of the product. good quality
    • Was the product free of any manufacturer defects? the product did not show obvious deect
    • Would you recommend this to a friend? Yes

    bonaflo from Florida, Apr 23, 2013

  • Nice backpack

    I bought this backpack to replace one that was falling apart for a PhD student. The backpack is good quality and meets all expectations. It doesn't fit giant three ring binders, but I don't think any backpack would.

    • Please tell us about the quality of the product. Good quality
    • Was the product free of any manufacturer defects? Yes
    • Would you recommend this to a friend? Yes

    mishka33 from Thornton, CO, Aug 20, 2011

  • Great backpack

    I just got my backpack a few days ago and I love it! It has a lot of room....I used it the other day to stay over at a friends and it held all my clothes, hair and make-up supplies plus a small throw pillow and a pretty good sized throw blanket.....I didn't expect it to hold that much but it did! I know this backpack is going to come in handy when I go to college in the fall. I would reccomend this to anyone who is looking for a great backpack for a descent price.

    • Would you recommend this to a friend? Yes

    scoobygrl17 from Michigan, Apr 19, 2010

  • almost perfect

    Love the backpack - carries 4 heavy nursing textbooks no problem. but i wish the front small pockets were not so prone to letting things fall out of them. Overall - one of the best packs I've used!

    • Would you recommend this to a friend? Yes

    danielleduji from Peoria, AZ, Jan 25, 2010

View All Most Recent Reviews

Product Q&A

Ask a Question

Where and what is the detachable cover system. Where is the detachable mp3/cell phone pocket. mutantdoc on Jul 4, 2014
Subscribe to Answers
Answer This Question

We are still researching this and should have the answer shortly. overstockcustomercare1 on Jul 10, 2014

Be the first to ask a question about this product.

Usually leaves our warehouse in 1-2 business days. *

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 safety, some orders go through our loss prevention department. If we select your order for this process, we will immediately notify you that there may be up to a 3-day delay on your order.

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

Buy Now with Bitcoin Learn More