---
product_id: 532941461
title: "Day Lumbar Waist pack, Running, Hiking, Cycling, Travel, and Outdoor Sport Activities with Dual Water Bottle Holders, Olive Green"
brand: "mountainsmith"
price: "$278.41"
currency: USD
in_stock: true
reviews_count: 13
category: "Mountainsmith"
url: https://www.desertcart.us/products/532941461-day-lumbar-waist-pack-running-hiking-cycling-travel-and-outdoor
store_origin: US
region: United States of America
---

# Dual 1L water bottle holders Fits plus-sized smartphones 1 lb 15 oz ultra-lightweight Day Lumbar Waist pack, Running, Hiking, Cycling, Travel, and Outdoor Sport Activities with Dual Water Bottle Holders, Olive Green

**Brand:** mountainsmith
**Price:** $278.41
**Availability:** ✅ In Stock

## Summary

> 🎒 Own the trail, the commute, and every adventure in between.

## Quick Answers

- **What is this?** Day Lumbar Waist pack, Running, Hiking, Cycling, Travel, and Outdoor Sport Activities with Dual Water Bottle Holders, Olive Green by mountainsmith
- **How much does it cost?** $278.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/532941461-day-lumbar-waist-pack-running-hiking-cycling-travel-and-outdoor)

## 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 Endure:** Crafted from ultra-durable ripstop nylon with patented Delta Compression System for a sleek, secure fit.
- • **Tech-Ready Storage:** Padded interior sleeve secures your tablet while smartphone-compatible waistbelt pockets keep essentials close.
- • **Versatile Carry Options:** Switch between lumbar waist pack and crossbody with removable shoulder strap for on-the-go adaptability.
- • **Stay Hydrated, Hands-Free:** Dual reinforced side pockets fit up to 32oz bottles, perfect for long hikes or cycling sessions.
- • **Effortless All-Day Comfort:** FreeFlow EVA backpanel padding and adjustable waistbelt (28"-48") keep you moving without fatigue.

## Overview

The Mountainsmith Day Lumbar Waist Pack is a premium, ultra-durable lumbar pack designed for hiking, running, cycling, and travel. Weighing just under 2 lbs, it features dual 1L water bottle holders, a padded tablet sleeve, and smartphone-compatible pockets. Its patented Delta Compression System and FreeFlow EVA backpanel ensure comfort and stability, while versatile carry options and reinforced storage make it the go-to pack for active professionals who demand function and style.

## Description

The original technical hiking lumbar pack marches on stronger than ever after 40+ years. Built with ultra-durable ripstop Nylon fabric, the Day Lumbar pack is as comfortable as it is versatile. Whether you are a hiker, disc golfer, commuter, tailgater, park ranger, birder, etc. this pack has the carrying capacity for all your needs. The large main compartment has a divider big enough for a tablet, large water bottle pockets on each side can easily hold 1L bottles, the outer pouch can hold essentials for easy access, and the Delta Wing Compression System helps keep the pack close to your lower back.

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.
Review: Large and comfortable - I needed a pack to hold camera gear, water. Etc., things needed for a day hike. This seems well made with a thick material. It is comfortable on my waist but also has a good shoulder strap. It will actually hold my camera with 600m lens which surprised me. This makes it easy to get everything to the car. I have used it for a couple of short birding hikes and found I don’t notice it is there until I need something and it is easily at hand. All the various pockets make it easy to reach what you need. This is lightweight and gives me more than enough room for day hikes.

## Features

- FUNCTION-FIRST: A lumbar waist and fanny pack travel bag that holds all your accessories. 1 lb 15 oz empty weight, 13” x 12” x 6”, optimal carry weight up to 15 lbs.
- STORAGE: Interior foam padded sleeve for tablet carry. Smartphone or iphone compatible waistbelt pockets (Fits plus sized phones). Side reinforced water bottle pockets (fits up to 32oz/1L). Inner Sanctum interior zippered compartment for small valuables and essentials.
- PRACTICAL: Tuck-away waistbelt with forward pull adjustment webbing. Front compression attachment system. Crossbody fanny pack carry with removeable shoulder strap for crossbody bag carry option. Strapette compatible (sold separately).
- COMFORT: Great travel pack with FreeFlow ridged EVA backpanel padding. Backpanel stash pocket ideal for securing passport, boarding pass, etc. Patented Delta Compression System load adjustment. Waistbelt Fit: 28” - 48”.
- FORGED FOR LIFE: All Mountainsmith packs and gear are known for their quality and are built to last. One of the industry's first lumbar packs, the Day is known for its function-first design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BR8H44YH |
| Best Sellers Rank | #141,813 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #186 in Hiking Waist Packs |
| Customer Reviews | 4.4 4.4 out of 5 stars (216) |
| Department | Unisex Adult |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item model number | 23-10020-29 |
| Manufacturer | Mountainsmith |
| Product Dimensions | 12 x 6 x 13 inches |

## Images

![Day Lumbar Waist pack, Running, Hiking, Cycling, Travel, and Outdoor Sport Activities with Dual Water Bottle Holders, Olive Green - Image 1](https://m.media-amazon.com/images/I/71UpgusFDiL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Large and comfortable
*by C***R on April 26, 2024*

I needed a pack to hold camera gear, water. Etc., things needed for a day hike. This seems well made with a thick material. It is comfortable on my waist but also has a good shoulder strap. It will actually hold my camera with 600m lens which surprised me. This makes it easy to get everything to the car. I have used it for a couple of short birding hikes and found I don’t notice it is there until I need something and it is easily at hand. All the various pockets make it easy to reach what you need. This is lightweight and gives me more than enough room for day hikes.

### ⭐⭐⭐⭐⭐ Best Day Pack EVER!
*by L***N on February 3, 2024*

This is the perfect day pack: plenty of room in the large areas of the pack, even for a water reservoir, if you prefer that over water bottles. I like keeping the heaviest things I carry (like water) closer to the center of my body, so I put lighter things (rain cover for the pack, xtra socks, rain jacket, sandals, etc.) in the secure water bottle holders on the outside of the pack. Anyway, there's generous room in the main compartment for extra clothes, first aid kit, and a meal, plus things like binoculars, journals, etc. Plenty of secure/zippered areas for must-not-lose-on-the-trail items (car keys, wallet, etc.) The drop down outer flap is great for a mid-weight jacket, or rain jacket, that needs to be readily available depending on the effort/heat I'm putting into the hike. The belt: come on! this is the best day pack belt on the market. Wide and lots of smooth hip padding and two additional external compartments for smaller items (though the zippered pocket does hold my iPhone 15, so it's not small!) on the belt at the front of the body. And the very best part: I have to wear NOTHING on my mid and upper back, where I generate a big percentage of heat while hiking. Also, my upper body can move without being encumbered by a pack--sometimes required on rock hops and in forests. When I travel by air to places I'll be hiking, the pack is my under-seat bag. My other good-hip-belted day packs with the same capacity could not fit under the seat. Very high quality craftsmanship mean my first one only finally wore out after 25 years of hundreds of miles of travel/hiking. (It's still in good enough shape to be my dog's travel bag.) I almost forgot: the bottom straps can hold a bottle of wine, a tarp, a pad for sitting, additional light shoes, towel, bathing suit, or many of the trail-specific things you like to take depending on your destination (baguette, anyone?)

## Frequently Bought Together

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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-25*