Commuter 21L Backpack

$98.10 $109.00
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Measuring in at 18” x 12” x 5” and 21L this bag is smaller, lighter, and tougher than our original backpack. This minimalist backpack will do what other bags cannot. The Commuter Backpack is comprised of ultra-durable 1050D Nylon, high tensile nylon stitching, and YKK zippers.

We have designed this bag with the user in mind. Extra pockets added on the front allow for easy access to pens and pencils in class, ample interior size for weekend travel, and a rigid back brace. Travel, work, or leisure, this bag is as versatile as it gets.



  • Material: 1050D Nylon Fabric.
  • Colors: Black .
  • Size: 18" x 12" x 5" (Please note these measurements are NOT at max capacity).
  • Carry-On Approved: Yes.
  • Capacity: 21L.



  • Two (2) Interior Pockets.
  • One (1) Laptop Pouch.
  • One (1) Hydration Bladder Port.
  • Two (2) Essential Enclosed Exterior Pockets.
  • Two (2) Removeable Waist Straps.

Internal Pouch

Easily slip a plate into it and get moving!

Elastic Sleeve: 11" Deep x 11" Wide

Velcro Pouch: 11" Deep x 9" Wide

With a rigid back brace you will love the comfort and convenience of this backpack.

*Fits up to 14" laptop*


Serious Steel Fitness

We are a small team based in Roanoke, Virginia. We began in 2009 with bands, but over the years have added products based on our own training needs.

We work hard to develop products that serve a real purpose and bring value to your training (regardless of your type or level of fitness).

Thank you for considering Serious Steel and we hope that our products can help you with your training goals.