---
product_id: 136244464
title: "Mil-Spec Crux 100 oz/3.0L Long Accessory Reservoir (1944001003), Brown"
brand: "camelbak"
price: "€ 76.40"
currency: EUR
in_stock: true
reviews_count: 8
category: "Camel Bak"
url: https://www.desertcart.ie/products/136244464-mil-spec-crux-100-oz-3-0l-long-accessory-reservoir
store_origin: IE
region: Ireland
---

# 1/2-turn rapid open/close cap 3L high-capacity reservoir HydroLock lever for gloved one-hand use Mil-Spec Crux 100 oz/3.0L Long Accessory Reservoir (1944001003), Brown

**Brand:** camelbak
**Price:** € 76.40
**Availability:** ✅ In Stock

## Summary

> 💦 Stay mission-ready with hydration engineered for pros and adventurers alike.

## Quick Answers

- **What is this?** Mil-Spec Crux 100 oz/3.0L Long Accessory Reservoir (1944001003), Brown by camelbak
- **How much does it cost?** € 76.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/136244464-mil-spec-crux-100-oz-3-0l-long-accessory-reservoir)

## Best For

- camelbak enthusiasts

## Why This Product

- Trusted camelbak brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Hydration Access:** 1/2-turn cap enables lightning-fast refills and secure closure, so you never miss a beat.
- • **Glove-Friendly HydroLock:** One-hand tube lever designed for tactical precision—even with gloves on, stay hydrated without fumbling.
- • **Ergonomic Wide-Mouth Design:** 80mm opening and integrated handle make filling and cleaning effortless, saving you time on the trail.
- • **Optimized Water Flow & Comfort:** Center baffle spreads water evenly, reducing back bulk and enhancing comfort during long missions or hikes.
- • **Rugged Durability Meets Lifetime Warranty:** Thick TPU bladder and reinforced seals ensure leak-proof reliability backed by CamelBak’s Got Your Bak Lifetime Warranty.

## Overview

The CamelBak Mil-Spec Crux 3L Long Hydration Reservoir is a top-tier hydration solution crafted from durable TPU with a 3-liter capacity. Featuring a rapid 1/2-turn cap, glove-friendly HydroLock lever, and an 80mm wide-mouth opening with integrated handle, it offers quick refills, easy cleaning, and one-handed operation. Its internal baffle design optimizes water distribution for comfort and low profile wear. Trusted by military and outdoor enthusiasts, it comes with a lifetime warranty ensuring rugged, long-term performance.

## Description

Our latest mil spec reservoir, designed for high-flow, rapid fill and the exceptional performance you'd expect from CamelBak.

Review: Best product ever! - Camelbacks are one of the best inventions ever. Used them in the military and now in the civilian world for hiking and outdoor activities. Just make sure you ONLY put water in it and clean and dry it out after each use for longevity of the product.
Review: The highest tech reservoir I have ever owned - I have owned a Gen-2 Camelbak for nearly a decade now, as well as a variety of wineskins, lightweight water bottles, and waterbags and nothing has compared to the Gen-4. The Crux reservoir features a variety of new kinds of tech that make this water bag stand out. - covered mouthpiece - detachable hose without leaking (unless some water is still in the hose part, that will still leak) - 30 degree tilt for hose detachment so it doesnt interfere with the handle -much stronger, easier to grip handle than the old models - quarter turn "click in" lock. Old camelbaks had to be fully rotated 3-4 times to close - hose covered in fabric to prevent rips and tears - extra thick, internally sealed bladder prevents rips, making the seals the strongest part of the bag all of these aformentioned things make this bag a must buy for rugged, long term use. I am going to be going on a 60 mile hike in the next few weeks and if anything goes wrong I will give and updated review, till then, I highly recommend this bag PS: A little tip, wash with warm water and soap when you first purchase it and it will easily remove the chemical taste from the water. It amazes me how many reviews for this thing say it has a bad taste, they clearly didnt wash it. It takes 5 minutes and it completely neutralizes the issue.

## Features

- Synthetic
- Imported
- 1/2-Turn cap for rapid open and close.
- 80mm wide-mouth opening for easy filling and cleaning.
- HydroLock lever on tube provides one-hand positive on / off even for operators wearing gloves.
- Easy grip integrated handle one-hand fill.
- Center reservoir baffle spreads water laterally creating lower stack height on wearer's back.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QRZSG3X |
| Best Sellers Rank | #40,510 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #38 in Outdoor Backpack Reservoirs |
| Brand | CamelBak |
| Brand Name | CamelBak |
| Capacity | 100 Fluid Ounces |
| Color | Brown |
| Customer Reviews | 4.6 out of 5 stars 425 Reviews |
| Global Trade Identification Number | 00886798016047 |
| Included Components | Hydration Reservoir |
| Item Dimensions W x H | 24"W x 1.57"H |
| Item Type Name | sports-hydration-packs |
| Item Weight | 5.1 Ounces |
| Manufacturer | CamelBak Products LLC |
| Material | Thermoplastic Polyurethane (TPU) |
| Material Type | Thermoplastic Polyurethane (TPU) |
| Pocket Description | Utility Pocket |
| Product Dimensions | 24"W x 1.57"H |
| Sport | Outdoors, Tactical |
| Sport Type | Outdoors, Tactical |
| Strap Type | Adjustable, Shoulder Strap |
| Tank Volume | 3 Liters |
| UPC | 886798016047 713852903626 |
| Unit Count | 1.0 Count |
| Warranty Description | Got Your Bak Lifetime Warranty |

## Product Details

- **Brand:** CamelBak
- **Color:** Brown
- **Item Weight:** 5.1 Ounces
- **Material:** Thermoplastic Polyurethane (TPU)
- **Sport:** Outdoors, Tactical

## Images

![Mil-Spec Crux 100 oz/3.0L Long Accessory Reservoir (1944001003), Brown - Image 1](https://m.media-amazon.com/images/I/71e854IY3oL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best product ever!
*by R***4 on December 11, 2025*

Camelbacks are one of the best inventions ever. Used them in the military and now in the civilian world for hiking and outdoor activities. Just make sure you ONLY put water in it and clean and dry it out after each use for longevity of the product.

### ⭐⭐⭐⭐⭐ The highest tech reservoir I have ever owned
*by D***S on February 27, 2022*

I have owned a Gen-2 Camelbak for nearly a decade now, as well as a variety of wineskins, lightweight water bottles, and waterbags and nothing has compared to the Gen-4. The Crux reservoir features a variety of new kinds of tech that make this water bag stand out. - covered mouthpiece - detachable hose without leaking (unless some water is still in the hose part, that will still leak) - 30 degree tilt for hose detachment so it doesnt interfere with the handle -much stronger, easier to grip handle than the old models - quarter turn "click in" lock. Old camelbaks had to be fully rotated 3-4 times to close - hose covered in fabric to prevent rips and tears - extra thick, internally sealed bladder prevents rips, making the seals the strongest part of the bag all of these aformentioned things make this bag a must buy for rugged, long term use. I am going to be going on a 60 mile hike in the next few weeks and if anything goes wrong I will give and updated review, till then, I highly recommend this bag PS: A little tip, wash with warm water and soap when you first purchase it and it will easily remove the chemical taste from the water. It amazes me how many reviews for this thing say it has a bad taste, they clearly didnt wash it. It takes 5 minutes and it completely neutralizes the issue.

### ⭐⭐⭐⭐⭐ Used this to replace a 2 liter
*by T***R on January 9, 2026*

I take longer hikes. I found a bag that I liked and replaced the 2 liter with this 3 liter. I also ordered an insulated hose to replace the bare ones that came with the bag and this pouch. The modular capabilities of everything made the changes seamless. I also go the cleaning accessories that make this bag very easy to clean and dry.

## Frequently Bought Together

- CamelBak - Mil-Spec Crux 100 oz/3.0L Long Accessory Reservoir (1944001003), Brown
- CamelBak Crux Reservoir Hydration Bladder Cleaning Kit- Reservoir and Tube Brushes, Hanger, and Cleaning Tabs
- CamelBak Magnetic Tube Trap, Grey, One Size

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*