What Size of Knack Pack Will My Laptop Fit In? | 13, 15 and 17 Inch Laptops

In 2021, many people have upgraded their laptop and tech setup.  And, with a new laptop comes the need for a new tech backpack to carry and protect it. 

Because of these new laptop purchases, the Knack Team has gotten a lot of inquiries on what is the right-sized Knack Pack for some of today’s popular new laptops. So, we put together this post on the Knack Pack size that may be right for you – based on your laptop’s size.

Knack Pack: A Great Laptop Backpack

The Knack Team is 100% remote so we understand the need for a tech backpack with lots of compartments to carry your laptop as well as your other tech gear.  We designed every size of Knack Pack with a separate, dedicated, padded laptop pocket that zips closed to keep your laptop safe. 

Best Backpack for a laptop

Quick Note: Form Factor

It’s important to note that the size of the laptop that fits into your Knack is determined by the Knack’s computer pocket’s zip opening size and not the size of the laptop pocket itself

So, to ensure our list is accurate, we hand fit each Knack with a form factor representing each laptop’s published dimensions. (Note: We compiled this list based on reports for the best and most popular laptops in 2019 and 2020 from Tech Radar and PC Magazine. If you have questions about your specific laptop, please email support@knackbags.com.)

Here's an example. Will a 15.6 inch laptop fits in a laptop sleeve? A 15.6 inch laptop won't fit into a 15 inch laptop sleeve, but it will fit into a 17" laptop sleeve. That's because the laptop's form factor is larger than the matching form factor for Knack's laptop pocket. 

Review of 15 inch laptop backpack

Manufacturer's Laptop Measurements

First off, a word about laptop measurements.  In general, when a laptop claims to be “X inches” or has a screen size of “X inches”, usually the measurement refers to the length of a diagonal line running from the outside edge of one corner of the screen to the outside edge of the opposite corner.  Additionally, some laptop brands round this measurement up and some round it down so it becomes challenging to know if a laptop fits simply by using the manufacturers’ claimed size.

Review of 15 inch laptop backpack

Small Knack Pack: Our 13 Inch Laptop Backpack

We start our list off with popular laptops that fit the laptop compartment on the Small Knack Pack. You can view all of its details and specs here.

The Knack Small Laptop Backpack is designed to fit up to a “13 inch” laptop or tablet (measured diagonally).  Some laptops are a little bit over that measurement so we’ve marked those 13 inch laptops that will be a tight squeeze with a double asterisk (**). 

If you’re looking for a bit more room, consider the Medium Knack Pack, discussed below. Here is a list of popular laptops that will fit in the Small Knack Laptop Backpack:

  • ASUS VivoBook S13
  • Dell XPS 13 
  • Google Pixelbook Go **
  • HP Elite Dragonfly 
  • HP Envy x360 (13") 
  • HP Pavilion x360 2-in-1 (11.6") 
  • HP Spectre x360 13t **
  • Lenovo Chromebook Flex 5 (13")  **
  • LG Gram Laptop (13.3") 
  • Macbook Air (13.3") 
  • Macbook Pro (13") 
  • Microsoft Surface Laptop 3 13.5 **

The Small Knack Pack is a great tech backpack for professionals looking to pack light on a daily basis, with room for a change of clothes in the expandable luggage compartment.  You can find more details on the Knack Small Laptop Backpack.

 Review of 13 inch laptop backpack

Medium Knack Pack: Our 15 inch Laptop Backpack

Next up is the popular Knack Medium Laptop Backpack, perfect for the professional who carries a good amount of items with them every day, and has a “15” laptop”. Below, we’ve listed popular laptops that will fit into the medium Knack.

Once again, since some laptops are a little bit over 15”, we’ve marked laptops that will be a tight squeeze with a double asterisk (**). 

If you’re looking for a bit more room, consider the Large Knack Pack, discussed below. Here is a list of popular laptops that will fit in the Knack Medium Laptop Backpack:

  • Acer Predator Gaming Laptop (15.6") **
  • Acer Swift3
  • ASUS Chromebook Flip 
  • ASUS ROG Zephyrus G14 
  • Dell Inspiron 15 **
  • Dell XPS 15 **
  • HP - ENVY x 360 (15.6") (Touch screen laptop) 
  • HP-ENVY x 360 (15.6") (Touch screen Chromebook)
  • Lenovo IdeaPad 1 (14") 
  • Lenovo Yoga C740 (14") 
  • MacBook Pro (15") 2019 
  • MacBook Pro (16") **
  • Microsoft Surface Laptop 3 (15")

We are often asked if the new MacBook Pro fits in the Medium Knack Pack so we wrote an article specific for MacBook Pros named Does the Knack Medium Laptop Backpack fit the 16" MacBook Pro?

The Medium Knack Pack is the go-to bag for commuting professionals who also want to pack gear for the gym or a 2-3 business trip. See how the Medium Laptop Backpack is the best Business Backpack for busy professionals.

Review of 15 inch laptop backpack

Large Knack Pack: Our 17 Inch Laptop Backpack

Last – but never least! – is the Knack Large Laptop Backpack, designed to hold 17 inch laptops.  Unexpanded, this laptop backpack holds up to 22 liters of gear, clothes and whatever else you must have with you every day.  When the expandable luggage compartment is expanded, it can hold up to 37 liters and 3 or more changes of clothes.

Below, we’ve shared what laptops will fit in the computer pocket on the Knack Large Laptop Backpack:

  • Acer 15.6" Chromebook 
  • Acer Nitro (15.6") 
  • ASUS TUF A15 
  • Dell G5 15.6" FHD Gaming 
  • Dell Inspiron (17.3") 
  • Lenovo IdeaPad 3 (15") 
  • LenovoThinkPad P1 - 2nd Gen 
  • LG Gram 17 
  • MacBook Pro (16")

In general, a 17" laptop sleeve has approximately these dimensions:  17.5" x 12.5" x 2"

See all of the product specs for the Large Knack Pack tech backpack.

Review of 17 inch laptop backpack


Will a 17 inch laptop fit in a backpack?

A 17 inch laptop will fit in a backpack with a 17 inch laptop sleeve, but you should never try to squeeze a 17 inch laptop into a laptop sleeve that is any smaller. This is because doing so can put unnecessary pressure on your laptop, and can stretch out your bag. But here's the good news: Usually, the laptop sleeve in a backpack is smaller than the main compartment, so you can likely fit a 17 inch laptop in the main compartment of an average backpack. 

What size laptop fits in a backpack?

You can safely bet that a 15" laptop will fit into a backpack. Even if it doesn't fit in the laptop pocket, you can store a 15" laptop in the main compartment of a backpack. For example, some people keep their 15" or even 16" laptop in the Small Knack Pack's main compartment... just make sure that it's protected in a laptop case!

Knack Pack Hack: Tablet Sleeve in Main Compartment

Fun Fact: Not all Knackpackers put their computer in the laptop compartment, choosing instead to put it in the tablet sleeve in the main compartment.  This is also a great solution for people who have to carry a work and personal laptop, needing two separate spots, or for people who love their Knack expandable backpack but find the computer pocket opening to be a bit small for their laptop.

Review of 15 inch laptop backpack

Read Reviews from Real People!

Want to do a bit more research?  Check out our reviews page for testimonials and experiences from real Knack customers.

Series 2: Medium Expandable Knack Pack

Professional and modern, this laptop backpack combines great everyday function with great travel function in the same bag.

Series 2: Medium Expandable Knack Pack® Backpack Knack Midnight Black
Series 2: Medium Expandable Knack Pack® Backpack Knack Alloy Gray
Steel Blue

Series 2: Medium Expandable Knack Pack




Color: Midnight Black

Color: Alloy Gray

Color: Steel Blue

Laptops: Fits 15" Laptop
Outfits: 2-3
Under seat: All Jets
Overhead: All Jets
Unexpanded: 24 Liters
Expanded: 35 Liters