Exo Mtn Gear K4 Stash Pocket Review

Overview

The K4 Stash Pocket is Exo Mtn Gear’s answer to the age-old backcountry problem of loose small items rattling around the bottom of your pack. It’s a featherweight 30d silnylon pouch that clips into any of six quick-release attachment points sewn into the K4 3600, 5000, and 7200 bags — the main compartment, both zippered side pockets, the hydration sleeve, and the lid. This is a purpose-built accessory for existing K4 owners, not a standalone stuff sack for the general backpacking crowd.

Key Specs

Spec	Detail
Weight	23.3 g (0.82 oz)
Material	30d Silnylon, translucent white
Price	$18.00 (MSRP listed at $19.99 on Exo’s site)
Compatibility	K4 3600, K4 5000, K4 7200
Attachment points	6 quick-release connections per bag (2 main bag, 1 per side pocket, 1 hydration sleeve, 1 lid)
Closure	Zippered

Performance

There’s not much to a stash pocket, which is exactly the point. At under an ounce, it’s not adding any meaningful weight to a hunting pack that’s typically already carrying 40-80+ lbs of meat, gear, or both. The translucent 30d silnylon is the standout material choice here — it’s built with a translucent white 30d Silnylon material that offers excellent water-resistance and allows some visibility for the pocket’s contents. That see-through quality sounds minor until you’re digging through a lid at 6 a.m. in the dark trying to find your headlamp batteries without unzipping three other pockets first.

The real value proposition is the six-point modularity. Exo’s own product page lists specific placement logic: each K4 bag has six different quick-release locations where you can choose to connect a K4 Stash Pocket — two connection points in the main bag area, a connection point in each of the two full-length zippered side pockets, a connection point in the rear hydration compartment, and a connection point in the main storage area of the K4 Lid. That flexibility shows up in how owners actually use them. One reviewer described running three at once: I carry 3 of these in my K4 3600 — one is my entire kill-kit minus meat bags, second is an extensive medical kit including trauma supplies, third is my emergency kit in the event I need to stay a night or two in the woods. Another K4 5000 owner runs a simpler two-pocket setup: I use two of these in my K4 5000 — one in my lid and one in the water bladder sleeve to keep small important items safe and secure.

Third-party reviewers echo the same pattern. A Backwoods Pursuit review of the K4 3600 noted the Exo K4 Stash Pockets are compatible with both the K3 and K4 systems and come in very handy for storing odds and ends, preferring one in the lid for tags, charger, cords, and car keys, with a second one dedicated to first aid items, extra batteries, and rope. The Rokslide K4 review mentions the same accessory carrying over from the older K3 platform, noting the K3 stash pockets work the same as before with the K4, and they’re liked because they’re lightweight, quickly removable, and organize small items. That’s a meaningful point of continuity — this isn’t a new, unproven accessory. It’s a design that’s survived a full platform redesign essentially unchanged, which is usually a good sign a product’s already found its ideal form.

One thing worth flagging: this is a hunting-brand accessory, so most of the feedback I found comes from hunters packing kill kits, first-aid supplies, and med kits rather than thru-hikers stashing snacks. If you’re using a K4 for backpacking or fishing trips rather than hunting, the core function (grab-and-go small-item organization) still holds, but you won’t find much backpacking-specific user feedback to lean on.

I couldn’t find any durability complaints or failure reports specific to the Stash Pocket itself in the reviews I dug through — the criticism in K4 reviews tends to focus on the pack’s side pockets, rifle carrier, or frame, not this accessory. That’s either a sign it’s a quietly solid product, or that it’s too small and cheap to generate strong opinions either way. Probably some of both.

Pros & Cons

Pros:

• Genuinely negligible weight (23.3g) for the organization it provides
• Translucent fabric lets you see contents without unzipping
• Six placement options means you can tailor storage to your specific workflow
• Quick-release design makes it easy to pull the whole pocket out rather than digging through it in place
• Carries over from the K3 system, so it’s a mature, field-tested design
• Cheap enough ($18) to buy two or three without a second thought

Cons:

• Only works with the K4 (and K3) bag ecosystem — no use if you don’t own one of those packs
• 30d silnylon is water-resistant, not waterproof; don’t expect it to survive a full dunking
• Requires buying separate female buckles if you want extra permanent connection points beyond what’s pre-installed
• No organizational features inside beyond the main compartment — it’s a pocket, not a pack-within-a-pack with sub-dividers

Who Should Buy This

This is an easy add for anyone who already owns a K4 (or K3) pack system and wants to stop losing small items — batteries, tags, first-aid supplies, fire kits — in the abyss of a half-full hunting pack. Buy two or three if you’re the type who likes dedicated kits for different categories (medical, repair, emergency) rather than one junk-drawer pocket. Skip it if you don’t own a compatible Exo bag; there’s no universal MOLLE mounting here.

Verdict

The K4 Stash Pocket doesn’t try to be more than it is: a light, well-placed, see-through pouch that solves the small-item chaos problem inside a big hunting pack. At 23.3g and $18, the cost of entry is low enough that the real decision isn’t whether to buy one, but how many. I’d rate it an 8/10 — it’s a smart, mature accessory with real field pedigree, docked a couple points only because its usefulness is entirely tied to owning the K4 ecosystem in the first place.