When it comes to backcountry gear, versatility is king. You only have so much room in your pack—and every piece of equipment needs to serve more than one purpose. That’s why the Cub Accessory Bag by Initial Ascent has quickly become one of my favorite add-ons. Here's why it deserves a permanent spot in your kit.
Add 700 Cubic Inches Without Upsizing Your Pack
One of the most immediate benefits of the Cub is its extra 700 cubic inches of storage. If you’re maxing out your current bag but don’t want to commit to a larger pack, the Cub gives you that breathing room without the bulk. I throw my overflow gear or quick-access necessities in there, and it keeps me from having to upgrade bag sizes for every single trip.
A Glassing Seat That’s Actually Comfortable
This is one of those multi-use features I truly appreciate. I slipped a 1” foam pad into the Cub and started compressing my puffy layers inside—it’s now my go-to glassing seat. Whether I’m parked on a ridge for hours or just taking a break, it’s far more comfortable than sitting on the ground, especially in rough terrain or snow.
Quick Attach/Detach = Instant Utility
The Cub clips on and off with ease using adjustable webbing straps and gatekeeper buckles. I can attach it to the outer part of my pack system, or directly to the IA Pannier load carrier. This lets me sandwich gear in between the Cub and my main bag—great for adding an extra layer of protection.
For example:
I’ll attach my rifle to the rifle holder and then slide it between the Cub and my bag. That setup shields my scope, trigger, and action from branches, rocks, and whatever else the backcountry throws at it.
Instant Camp Bag
Once I’m back at camp, the Cub becomes my grab-and-go organizer. I pack all my essential camp items in it—headlamp, lighter, filter, snacks—and just detach the Cub. It’s like having a built-in camp tote, with all your critical gear in one place and no digging through your main pack.
Converts Into a Lightweight Stalk Pack
Here’s a trick: connect the Cub’s straps together, and now you’ve got a minimalist shoulder pack. Perfect for stalks or short ambushes where you only need the basics. It’s quiet, lightweight, and stays out of your way.
This function alone makes it a smart tool—but it’s the combination of all these features that makes the Cub a must-have. It’s the classic backcountry rule: bring gear that serves more than one purpose. The Cub does that and more.
Final Word
If you're building out your Initial Ascent system—or just looking for a modular upgrade—the Cub Accessory Bag is one of the smartest, most versatile tools you can add. From added storage and protection, to camp utility and stalk stealth, this small bag punches way above its weight.
Ready to add the Cub to your pack?
Shop the Cub Accessory Bag