Spiritus Systems BIG Fanny SACK in Multicam camouflage with dual zippered compartments, adjustable waist strap, and drainage grommets
Spiritus Systems BIG Fanny SACK in Multicam with main compartment open to display a handgun equipped with a red dot optic
Spiritus Systems BIG Fanny SACK in Multicam with main compartment open to display a Spiritus Systems medical kit inside
Spiritus Systems BIG Fanny SACK in Multicam with adjustable shoulder strap and rear zippered pocket holding a passport
Spiritus Systems BIG Fanny SACK in Multicam Arid camouflage with front zippered pocket, adjustable waist strap, and buckle
Spiritus Systems BIG Fanny SACK in Multicam Black camouflage with front storage pocket, zipper pulls, and adjustable waist strap
Spiritus Systems BIG Fanny SACK in Multicam Tropic camouflage with front zippered pocket and adjustable buckle waist strap
Spiritus Systems BIG Fanny SACK in Black with adjustable waist strap, buckle closure, and front zippered storage pocket
Spiritus Systems BIG Fanny SACK in Coyote Brown with adjustable waist strap, front zippered pocket, and drainage grommets
Spiritus Systems BIG Fanny SACK in Ranger Green with front zippered pocket, black zipper pulls, and adjustable waist strap
Spiritus Systems BIG Fanny SACK in Wolf Grey with front zippered storage pocket, black zipper pulls, and adjustable waist strap
Spiritus Systems BIG Fanny SACK in Woodland camouflage with front zippered pocket, drainage grommets, and adjustable waist strap

Spiritus Systems BIG Fanny SACK

By Spiritus Systems
From $ 86.95
Color:

Bigger Bag. Bigger Plans.

Some gear deserves a little extra room. The Spiritus Systems BIG Fanny SACK takes everything you love about the original Fanny SACK Mk3 and gives it a serious size upgrade. Built to accommodate larger-frame handguns like the Glock 17, smaller-frame Staccato 2011 models, and pistols equipped with optics and weapon lights, this full-size waist pack delivers discreet storage without sacrificing accessibility.

Whether you're running a full mission loadout or keeping things low-key in board shorts and a hoodie, the BIG Fanny SACK is built to move with you. Its versatile design allows for access from either side, even in tight spaces like vehicles. Prefer to keep it out of the way? Wear it around your lower back and slide it forward when you need access.

The half-zip main compartment helps keep your equipment contained, while soft loop fields on both interior walls allow you to customize your setup using Spiritus Systems Pouch Inserts. Two internal tie-down loops provide additional security for essential equipment or a properly configured holster.

Organization doesn't stop there. A small front zippered pocket keeps frequently used items within reach, while a separate rear zippered compartment provides dedicated storage for your ID, cash, and other personal essentials. Keeping those items separate from a concealed handgun helps reduce unnecessary interference when accessing the main compartment.

Flat laminate attachment loops on both sides provide convenient spots for gloves, carabiners, or chemlights. Two drainage grommets at the bottom of the main compartment help water escape if your gear takes an unexpected swim.

Features

  • Full-size design: Accommodates larger-frame pistols and handguns equipped with optics and lights.

  • Versatile carry: Wear around the waist or lower back for adaptable positioning.

  • Half-zip main compartment: Helps prevent equipment from spilling out.

  • Modular interior: Dual soft loop fields accommodate Spiritus Systems Pouch Inserts.

  • Internal tie-down loops: Two attachment points for securing equipment or a holster.

  • Front zippered pocket: Quick-access storage for smaller essentials.

  • Rear zippered pocket: Separate storage for identification, cash, and personal items.

  • Side attachment loops: Flat laminate loops for gloves, carabiners, chemlights, and other accessories.

  • Drainage grommets: Two bottom openings allow water to drain from the main compartment.

Why We Love It

The BIG Fanny SACK proves that a fanny pack can pull its weight. You get more room for larger handguns, customizable organization, and multiple ways to carry without looking like you're hauling your entire kit around. It's practical enough for duty use, discreet enough for everyday wear, and versatile enough to handle both. Sometimes bigger really is better.

View details