---
product_id: 513316037
title: "Mountainsmith Day Lumbar Pack - Black Forge"
brand: "mountainsmith"
price: "AR$539359"
currency: ARS
in_stock: true
reviews_count: 13
category: "Mountainsmith"
url: https://www.desertcart.com.ar/products/513316037-mountainsmith-day-lumbar-pack-black-forge
store_origin: AR
region: Argentina
---

# 13L versatile capacity Dual 32oz water bottle pockets Impact-protective FreeFlow padding Mountainsmith Day Lumbar Pack - Black Forge

**Brand:** mountainsmith
**Price:** AR$539359
**Availability:** ✅ In Stock

## Summary

> 🎯 Own your day with the pack that adapts as fast as you do!

## Quick Answers

- **What is this?** Mountainsmith Day Lumbar Pack - Black Forge by mountainsmith
- **How much does it cost?** AR$539359 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/513316037-mountainsmith-day-lumbar-pack-black-forge)

## Best For

- mountainsmith enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable 420D Dobby Nylon with secure zippers and compression system for a snug, reliable fit.
- • **All-Day Versatility:** Designed for hiking, travel, and everyday carry—your go-anywhere companion.
- • **Smart Storage System:** Bright yellow interior and multiple internal pockets keep essentials organized and visible.
- • **Adaptive Carry Options:** Tuck-away waistband, removable shoulder strap, and Strapette compatibility for personalized wear.
- • **Comfort Meets Protection:** FreeFlow padded back panel cushions impact and keeps you comfortable on the move.

## Overview

The Mountainsmith Day Lumbar Pack in Black Forge is a rugged 13L lumbar pack crafted from durable nylon, featuring impact-protective FreeFlow padding and smart internal organization with bright yellow lining. Designed for versatile carry with a tuck-away waistband, removable shoulder strap, and compatibility with the Strapette system, it holds essentials securely with dual 32oz water bottle pockets and a compression system that keeps it close to your back. Perfect for professionals and adventurers alike, it balances comfort, durability, and style for everyday use.

## Description

The Mountainsmith Day Lumbar Pack is handy for whatever the day entails. Building on a 40+ year heritage, its 13L volume carries the essentials whether you’re hiking, traveling, or playing disc golf. Mountainsmith padded the back panel and tablet sleeve for impact protection and a comfortable carry. Side water-bottle pockets keep 1-liter water bottles within easy reach at all times. Mountainsmith's Delta Wing Compression system ensures that the Day stays close to your lower back — perfect for fast-moving trail adventures. The waistband tucks away, and the removable shoulder strap lets you carry the lumbar pack in multiple ways. It’s even compatible with Mountainsmith’s Strapette shoulder system (sold separately) to wear like a backpack for heavier loads.

Review: A real workhorse - I bought this article not for hiking, but for daily use. I am a mail carrier and this pack sits behind the seat in my mail vehicle and manages my drinks, my tools, extra pens, lights, miscellaneous weather gear (neck gaiter, cleats, and gloves in the winter, cooling kerchief in summer), and my smaller hats. It goes to and from work with me every day, five or six days a week. After most of a year, it's still holding its shape, zippers still secure, bottle holders still cinching tight. This is a "tardis" container for me, holding more in its space than it seems it should. I found the original price a bit high, but it was worth every penny for the long-lasting quality. I cannot speak to the comfort as worn for hikers, but I use the shoulder strap in and out every day and it hangs from the shoulder strap in my vehicle.
Review: If you only want to buy one lumbar pack, pick this one. - Excellent build quality, well laid out features, very comfortable to wear. Holds a decent amount, too. It's not too heavy, but it'll take all the stuff you need for a day out hiking. The pull tabs on the zips are easy to use (even with gloves). Now, I will grant that it's not as cheap as some lumbar packs out there, but the quality and design, not to mention the warranty, make this an easy choice. It's well worth the price.

## Features

- For any Day and Every Day | 13L lumbar pack designed for hiking, traveling, and everyday carry.
- FreeFlow Padding | Internal foam and back panel provide a comfortable ride and impact protection.
- Versatile Carry Options | Tuck-away waistband, removable shoulder strap, and Strapette (sold separately) compatibility.
- Inner Sanctum | Collection of internal pockets (with bright yellow interior for better visibility inside) work with the smartphone-compatible waist pockets and 32oz bottle side pockets.
- Tech Specs | [Dimensions] 13 x 12 x 6in; [Waistbelt] 28 - 48in; [Weight] 1lb 11oz; [Volume] 13L (800cu in); [Material] 420D Dobby Nylon, 150D Poly Liner

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0GQWBZZXW |
| Best Sellers Rank | #787,235 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,682 in Fashion Waist Packs |
| Brand Name | Mountainsmith |
| Closure Type | Tuck-away |
| Color | Black Forge |
| Customer Reviews | 4.4 out of 5 stars 184 Reviews |
| Item Dimensions L x W x H | 13"L x 6"W x 6"H |
| Manufacturer | Mountainsmith |
| Material Type | Nylon |
| Number of Items | 1 |
| Number of Packs | 1 |
| Size | 13 x 12 x 6 inches |
| UPC | 757894334536 |
| Unit Count | 1 Count |

## Images

![Mountainsmith Day Lumbar Pack - Black Forge - Image 1](https://m.media-amazon.com/images/I/51imdAec8SL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ A real workhorse
*by L***N on March 3, 2025*

I bought this article not for hiking, but for daily use. I am a mail carrier and this pack sits behind the seat in my mail vehicle and manages my drinks, my tools, extra pens, lights, miscellaneous weather gear (neck gaiter, cleats, and gloves in the winter, cooling kerchief in summer), and my smaller hats. It goes to and from work with me every day, five or six days a week. After most of a year, it's still holding its shape, zippers still secure, bottle holders still cinching tight. This is a "tardis" container for me, holding more in its space than it seems it should. I found the original price a bit high, but it was worth every penny for the long-lasting quality. I cannot speak to the comfort as worn for hikers, but I use the shoulder strap in and out every day and it hangs from the shoulder strap in my vehicle.

### ⭐⭐⭐⭐⭐ If you only want to buy one lumbar pack, pick this one.
*by G***S on November 3, 2025*

Excellent build quality, well laid out features, very comfortable to wear. Holds a decent amount, too. It's not too heavy, but it'll take all the stuff you need for a day out hiking. The pull tabs on the zips are easy to use (even with gloves). Now, I will grant that it's not as cheap as some lumbar packs out there, but the quality and design, not to mention the warranty, make this an easy choice. It's well worth the price.

### ⭐⭐⭐⭐ Perfect for large dudes
*by S***L on May 17, 2026*

Pluses: Roomy, good quality, robust zippers, multiple compartments, nice choice of colors, roomy waist strap for larger users, shoulder strap, pockets to tuck in the waist strap if using it as a shoulder bag. Minuses: 1. if one has a small waist and larger hips, (a) there’s a lot of strapping that has to be cinched up and the extra length flops around distractingly and gets in the way of clipping the waist belt (b) the pack sits on the hips and flops around on the waist (because the pack is a cylindrical shape || not an inverted cone shape ^) 2. The shoulder strap tends to flip around so the padded side is up instead of on the shoulder. 3. Although the compartments are nice and roomy, that means most of the things one puts in sink to the bottom and are hard to get out (so extra small pockets would be good). 4. A little on the pricey side, but the quality is worth it. Improvements: additional small pockets for items such as cell phone, glasses, and wallet would be a nice addition. The pocket that the key clip is in is harder access than the back pocket, so putting the key clip in the easiest pocket to open would be good. One option would be to put the key clip in the zipper pocket on the waist band, or having a second waistband pocket on the side that’s just padded now.

## Frequently Bought Together

- Mountainsmith Day Lumbar Waist pack, Running, Hiking, Cycling, Travel, and Outdoor Sport Activities with Dual Water Bottle Holders, Grey Black
- Mountainsmith Strapette, Black
- Mountainsmith Lumbar Pack Rain Cover

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-08-14*