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Original Shadow Guide 31

Regular price $220.00
  • Black 525 Ballistic/Cloud 210 Ballistic
  • You can expect your TOM BIHN bag to give you years of hard service. Our bags are guaranteed to be free from defects in materials and workmanship for the life of the bag. That means if something goes wrong and it's our fault, we'll fix it at no charge.

    Same with your Skookum Dog gear: it'll give you years of hard service and is guaranteed to be free of defects in materials or workmanship. If something goes wrong and it's our fault, we'll fix it at no charge. If your dog chews something up or otherwise damages it, we'll repair it for a reasonable fee if it is repairable.

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Exterior Fabric: 525 denier 2x2 Ballistic Nylon
Lining Fabric: 210 denier 2x2 Ballistic Nylon
Bottom: 1050 denier HT ballistic nylon
Dri-Lex® Aero-Spacer® mesh upper back
Closed-cell foam back
EVAZOTE® foam shoulder straps
Tough Duraflex®, Nexus, and Woojin buckles and related components
#8 and #5 YKK zippers


Made in USA with fabric from Korea / Japan / U.S.A.
100% finished seams


Dimensions: 12.6" (w) x 21.7" (h) x 9.4" (d) / 320 (w) x 550 (h) x 240 (d) mm
Volume: 1900 cubic in / 31 liters
Weight: 2 lb 10 oz / 1185 grams
Removable 1" / 25 mm waist strap included
Total O-rings: 5 (2 in the main compartment, 1 in the large mesh pocket, 2 in the top pocket)
Want to see the specs for all of our bags?

If the original Guide’s Pack is a fully realized sketch, the limited edition Shadow Guide V1 is the version of the sketch with several brush strokes removed — what the sketch conveys remains clear, but with an end experience of true simplicity. 

The core architecture of the Shadow Guide is essentially that of the original Guide’s Pack, but we’ve removed the accessory strap holders from the top, bottom, front and sides, along with the ice axe loop, giving the exterior of the Shadow a straight-forward appearance. Along with the accessory strap holders, we’ve given the boot to all the other coyote brown trim, like straps, drawcord and mesh back: it’s all beautiful black now.

Two minor additions of webbing serve to add major functionality: first, interior loops to which you can secure the optional Cache laptop sleeve. (Note: all existing sizes of our Cache sleeve fit in the Shadow Guide -- even the Cache 17B for the Razer Blade Pro.) And second, an unobtrusive webbing loop on the bottom to which one can affix a Guardian Light if biking or walking. Both are designed to add additional functionality to the bag in urban situations — specifically, commuting to and from work, volunteering, or a night out at a friend’s or the local pub. 

And included with the Shadow Guide are black zipper cords so you can add them to any or all of the pack’s three zipper sliders. Here’s a video that demonstrates how to add the zipper cord to the Shadow Guide Zippers and here’s another video that features other techniques for adding cord to metal zippers (or even replacing the metal zippers entirely.) And for even more on the pros and cons of various types of zippers and pulls, see our Cord Zipper Pulls page.

It's a top-loading backpack that closes with a drawstring and top flap pocket. The top flap pocket fastens down with two 1" side-release buckles and nylon webbing straps; it's actually three pockets in one: the main pocket has two stealthy mesh pockets on its underside.

The main compartment closes with a drawstring and cord lock. Inside the main compartment, you’ll see the backbone of the Shadow Guide: its included, removable, adjustable internal frame, made of .055" high density polyethylene (HDPE) and a single stay of 1" / 25 mm wide 6061 aluminum, held in place by six lobes (or fins) that are engineered to relieve the torsional stresses of the pack flexing as you walk; they also facilitate the design that allows the internal frame to be easily removed from the pack. 

Carries comfortably on our Edgeless EV50 1/2” shoulder straps. Dri-Lex® Aero-Spacer® mesh, padded with .25" / 6 mm closed-cell foam; the foam extends around into the ballistic bottom of the bag. The back panel of the pack features a mesh back won’t abrade your wool or silk clothing and reduces the heat against your back when hiking on hot days. 

Included is an adjustable sternum strap that allows you to adjust the placement and angle where the shoulder straps contact your shoulders. Also included is a simple 1" wide webbing waist belt to help stabilize the load of the pack. Both are removable, and you have the option of upgrading the latter to the optional Shadow Guide Padded Hip Belt.

Exterior of our tough, durable, yet lightweight 525d ballistic nylon; for even greater durability, the bottom of the pack is 1050d ballistic nylon and is lined with 210d ballistic.

There’s less to think about here and that holds space for experience. If you want all the features, this isn’t the bag for you: see the original Guide’s Pack. If you want a pack design that’s a modern take on the classic, can make its way from work to the trail, and does what it needs to do and nothing more, this might be the bag for you. 

your bag already has great built-in organization. that said, you may want to add these optional organizational accessories to further organize and protect what you carry.


The Cache is a protective laptop or tablet sleeve that's available in many sizes to fit a wide variety of devices.

Guardian Light

Our Guardian DF Lights are rugged, easy to use, and work as either flashing safety beacons or interior bag lights. Made in Canada. Choose Strap-Mount as an exterior bag light and Original Base as an interior bag light (includes a lanyard).

Shadow Guide Padded Hip Belt

The Shadow Guide Padded Hip Belt is a simple padded hip belt that attaches to The Shadow Guide. It allows you to transfer a surprising amount of the Shadow Guide's weight to your hips while hiking, and is great if you’re going to use the Shadow Guide for heavier loads.

You can expect your TOM BIHN bag to give you years of hard service. Our bags are guaranteed to be free from defects in materials and workmanship for the life of the bag. That means if something goes wrong and it's our fault, we'll fix it at no charge.

Defects in materials or workmanship are uncommon and are most often evident while your bag is still new. Keep in mind that daypacks and briefcases are often subject to serious wear in everyday use. We often see TOM BIHN bags that are still solid and in use after five, ten, fifteen, even twenty or twenty-five years, with minor repairs needed here or there. But remember: only true love lasts forever.

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