---
product_id: 664464775
title: "Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue"
brand: "gregory"
price: "€ 242.63"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/664464775-inertia-18l-h2o-unisex-day-hiking-backpack-with-included-water
store_origin: FI
region: Finland
---

# 18L spacious capacity 2L Hydro reservoir included Magnetic sternum buckle Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue

**Brand:** gregory
**Price:** € 242.63
**Availability:** ✅ In Stock

## Summary

> 💧 Stay refreshed, stay unstoppable with Gregory Inertia 18L H2O!

## Quick Answers

- **What is this?** Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue by gregory
- **How much does it cost?** € 242.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/664464775-inertia-18l-h2o-unisex-day-hiking-backpack-with-included-water)

## Best For

- gregory enthusiasts

## Why This Product

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

## Key Features

- • **Custom Fit Freedom:** Removable webbing hipbelt adapts to your style and comfort needs for all-day wearability
- • **Hydrate on the Move:** 2L leak-proof reservoir with easy-fill handle and quick-disconnect hose for seamless refills without stopping your adventure
- • **Snap & Go Hydration:** SpeedClip hydration hanger and magnetic sternum buckle enable one-handed, hassle-free access to your water
- • **Comfort Meets Support:** 3D multi-density foam backpanel and perforated shoulder harness keep you cool and supported on every trail
- • **Sleek & Durable Design:** Lightweight polyester build in stylish Indigo Blue, perfect for the modern trailblazer

## Overview

The Gregory Inertia 18L H2O is a unisex day hiking backpack featuring an integrated 2L hydro reservoir with leak-proof bottle-style cap and quick-disconnect hose. Designed for comfort and convenience, it includes a perforated shoulder harness with magnetic sternum buckle, a 3D multi-density foam backpanel, and a removable hipbelt. Crafted from durable polyester in a sleek Indigo Blue, this 18-liter pack is perfect for professional adventurers seeking reliable hydration and ergonomic support on the go.

## Description

Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue

## Features

- Includes 2L Hydro reservoir with Easy-Fill and handle and leak-proof bottle style cap
- Dedicated 3/4 zippered hydration sleeve with SpeedClip hydration hanger for a one-handed, snap-and-go connection
- Inline hose quick-disconnect coupling for easy refills without having to un-thread the hose from the shoulder harness
- Perforated shoulder harness with magnetic sternum buckle and hose clip for the Drylock bite valve
- 3D foam backpanel with supportive multi-density foam
- Removable webbing hipbelt

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 20 x 14 x 2.5 inches |
| Package Weight | 0.77 Kilograms |
| Item Dimensions  LxWxH | 19.49 x 11.22 x 3.15 inches |
| Brand Name | Gregory |
| Model Name | Inertia 18 H2o |
| Color | Indigo Blue |
| Material | Polyester |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | Gregory Mountain Products |
| Style | 18l |
| Outer Material | Polyester |
| Size | One Size |
| Sport Type | Hiking |
| Age Range Description | Adult |
| Capacity Total | 18 Liters |

## Images

![Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue - Image 1](https://m.media-amazon.com/images/I/71lyi2KpBjL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- Gregory Inertia 18L H2O Unisex Day Hiking Backpack with included Water Reservoir/Bladder, One Size Fits All, Indigo Blue
- Gregory 3D Hydro 2L Day Hiking/Backpacking Hydration Water Reservoir/Bladder, Optic Blue

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**Shop now:** [https://www.desertcart.fi/products/664464775-inertia-18l-h2o-unisex-day-hiking-backpack-with-included-water](https://www.desertcart.fi/products/664464775-inertia-18l-h2o-unisex-day-hiking-backpack-with-included-water)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-24*