Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Pack Optifade Subalpine
Mountain Pack Optifade Subalpine
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack
Mountain Hauler 4000 Pack

Mountain Hauler 4000 Pack

  • Big Game : Optifade Subalpine
(6 Reviews)

The Mountain Hauler 4000 is the perfect pack for day hunts or overnight stays when you need the ability to carry meat and horns out of the field simultaneously. The pack provides 3700 cubic inches of non-expanded volume for easy hiking with the capability to expand 800 cubic inches when needed. The internal load-hauling shelf and antler straps beg for the workload when it’s time to get your harvest out of the field. The T-6 6061 aluminum frame provides for an adjustable suspension and a strong chassis enabling you to carry loads upwards of 150 lbs. The two vertical exterior pockets hold most spotting scopes, tent poles or a Flash Shelter. The side pockets will hold tri-pods, trekking poles or water bottles. The triple-density foam waist belt maximizes comfort while Velcro placed on the waist belt holds most pistol holsters, bear spray, and other SITKA pack accessories.

Sizing: Medium: 28”-36” Waist // Large: 34”-40” Waist

Product ID: #40069

Sizing Guide

Jacket & Tops Sizing

Size Chest Sleeve
Small 36 - 38" 33"
Medium 39 - 41" 34"
Medium Tall 39 - 41" 36"
Large 42 - 45" 35"
Large Tall 42 - 45" 37"
X-Large 46 - 49" 36"
X-Large Tall 46 - 49" 38"
2XL 50 - 53" 37"
2XL Tall 50 - 53" 39"
3XL 54 - 57" 38"

Pant Sizing (Inches)

Size Waist Reg Tall
30 30" 31"
31 31" 31"
32 32" 31" 33"
33 33" 32" 34"
34 34" 32" 34"
35 35" 32" 34"
36 36" 33" 34.5"
37 37" 33" 34.5"
38 38" 33" 34.5"
40 40" 33"
42 42" 33"
44 44" 33"

Pant Sizing

Size Waist Reg Tall
Small 28 - 30" 31"
Medium 31 - 33" 31" 33"
Large 34 - 37" 32" 34"
X-Large 38 - 41" 32" 34"
2XL 42 - 45" 32" 34"
3XL 46 - 49" 32" 34"

Dakota Pant Sizing

Size Waist Reg Tall
30 31" 31"
32 33" 31" 33"
34 35" 32" 34"
36 37" 32" 34"
38 39" 32" 34"
40 41" 32"
42 43" 32"
44 45" 32"

Glove Sizing

Size Palm Circ Length
Medium 8 - 8.5" 7.5 - 8"
Large 9 - 9.5" 8.5 - 9"
X-Large 9.5 - 10" 9 - 9.5"
2XL 10 - 10.5" 9.5 - 10"

Gaiter Sizing

Size Calf Circ Boot Size
M/L 17.5" US 6-10"
L/XL 18.5" US 10-14"

How to Take
Your Measurements


    Bend your elbow and put your hand on your hip. Measure from the center of the back of your neck, along the shoulder and down the elbow to the wrist bone.


    Take measurement under armpits, around fullest part of chest and shoulder blades.


    Measure around where you normally wear your pants, keeping the tape measure a bit loose or putting one finger between your body and the tape measure.

  • 4. INSEAM

    In a standing position,measure from your crotch to where you want your pants to end, breaking at the top of the shoe in the front and just above the heel in the back.

  • 5. GLOVES

    With hand partially closed, measure over the knuckles, around the hand, excluding the thumb.

Fit Guide

SITKA Gear engineers gear with a specific Fit and intended end use in mind. These functional designs provide the user with authentic garments for the right situation.

Fit Descriptions

We can communicate our Fit descriptions in 3 different ways. Keep in mind that each garment will allow for layering in accordance to the garments place in a system and described Fit

  • P/F
  • S/F
  • E/F

    Designed for minimal layering. Whether an early season piece or already insulated this garment fits to prevent inefficiencies in heat retention caused by dead space.


    Designed to accommodate layering for more versatility from early to late season climates.


    Designed for maximum layering in the worst conditions. Cut roomier to accommodate additional layering underneath.

Back to Shopping
  • Velcro Hip Belt: Holds bear spray and most pistol holsters with ease.

  • Molded and Reinforced Waist Belt: Comfortably and quietly trek in out of your spots with a heavy pack.

  • T-6 6061 Aircraft-Grade Aluminum Frame: Enables you to carry loads upwards of 150 lbs.

  • 3700 Cubic Inches of Non-Expanded Volume: Capable of expanding another 800 cubic when needed.

  • Internal Hydration Sleeve: Accommodates bladders in excess of 3 liters.

  • Two Vertical Exterior Pockets: Holds most spotting scopes, tent poles, or a Flash Shelter.

  • 450-Denier Coated Polyester on Underside and Back Panels: 220-Denier Nylon to PU-Coated face and back.

  • Stash Pockets: Quickly store layers while on the move.

  • Main Pack Volume Expands from 2750 to 3700 Cubic Inches: Total max volume 4500 cubic inches, 5.75 lbs.

  • Imported

Why We Made This

The Mountain Hauler 4000 is the perfect pack for day hunts or overnight stays when you need the ability to carry meat and horns out of the field simultaneously. SITKA's John Barklow covers the textile technology, fit, and features of the Mountain Hauler 4000.

Product Comments

6 Reviews
Write a Comment
Reviewed On 09/06/2022

I really like the way the pack is designed. It just fits my way of packing. My only complaint is that the mesh pockets on the side are not durable enough.

Jamie Brown
Reviewed On 08/30/2022

My son and I both have this pack in M/L. I’m 6’0” and about 180lbs, he is 5’9, 140. With the adjustment system on the frame the same size pack worked well for both of us. If you’re a giant I’d go with the L/XL. We carried this pack for multiple scouting trips, some pronghorn hunts, and elk hunts. It is a great pack and held up well to everything we threw at it. The only meat hauling I did was a couple of cow elk someone else shot, but the pack worked great for those. Since the hauling shelf is on the inside you’ll want to pack your extra clothing in other compartments. When full of meat it limits how much other stuff you can haul, but the internal shelf system keeps the load nice and high for anyone with not-so-young lower back. The way it’s set up you can adjust how that weight rides, which I like.

Matt Wold
Reviewed On 07/14/2022

This pack is able to get small for quick day hunts but has the ability to expand like crazy for extra gear. I used it last year for archery elk scouting in August and the first week of September in the Big Horns. We had weather swings hot to cold, dry to wet. This pack held up, kept the dust out, rain out and gear safe on my back. I love the outside jacket pouch for easy access to a puffy. Will continue to use it for my everyday hunt pack for big game, upland and ducks/geese.

Reviewed On 09/24/2021

I bought this pack for a 5 day backcountry elk hunt. This was my first hunt of this type and I learned a lot from the experience. The Mountain Hauler 4000 was my favorite piece of gear that I purchased for the hunt. It’s very comfortable and it functioned exactly how I hoped my pack would. I think that Sitka packs should be included in the conversation with other big name pack brands. Unfortunately, the only test I wasn’t able to put the 4000 through was hauling out meat.

Reviewed On 01/25/2021

Absolutely love this pack! It has just the right amount of storage to be organized but not too much as to over compartmentalize. It'll haul any load out that you can throw at it and it is very comfortable fully loaded. The only thing I would like to see is the option to remove the bag from the frame and have an external load shelf in order to haul out meat, plus a fully loaded bag with my gear attached.

Clyde E. Vetter
Reviewed On 12/15/2019

Just used this bag on a week long mule deer spot and stalk and loved it. Super comfortable and user friendly. Also carried a spotting scope and tripod a couple of days and it handled the extra weight very well. The adjustments allowed me to customize the fit and it made for comfortable hikes. I put the extra small bag on the waist strap as well as my 2200 range finder on the other side for easy access. It also worked very well with my Sitka Bino harnesses. The only thing i need to figure out is a little better way to strap my bow on. Thanks Sitka!!

1 of 2
SITKA Gear - 07.26.2017

The Linguists

Few sounds in nature rival the bugle of a bull elk. Join nine-time World Elk Calling Champion Corey Jacobsen as he explores a hunting legacy with elk calling pioneers Larry D. Jones, Wayne Carlton, Rockie Jacobsen, and Will Primos.