---
product_id: 233279686
title: "Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad"
brand: "big agnes"
price: "€ 391.63"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/233279686-big-agnes-lost-dog-0-30-degree-sleeping-bag-fireline
store_origin: NL
region: Netherlands
---

# 3 lbs lightweight & packs to 7x8.5 inches 100% recycled FireLine ECO insulation 69" shoulder room for roomy comfort Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad

**Brand:** big agnes
**Price:** € 391.63
**Availability:** ✅ In Stock

## Summary

> 🔥 Sleep smart, pack light, and stay cozy wherever adventure calls! 🎒

## Quick Answers

- **What is this?** Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad by big agnes
- **How much does it cost?** € 391.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/233279686-big-agnes-lost-dog-0-30-degree-sleeping-bag-fireline)

## Best For

- big agnes enthusiasts

## Why This Product

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

## Key Features

- • **Packable & Durable:** Lightweight 3 lbs with water & stain-resistant ripstop nylon shell, perfect for minimalist backpackers.
- • **Eco-Friendly Warmth:** FireLine ECO insulation made from 100% post-consumer recycled polyester keeps you warm and green.
- • **Roomy & Cozy Design:** Generous 69" shoulder width and vaulted footbox keep you comfortable without bulk.
- • **Integrated Sleep System:** Flex Pad Sleeve attaches like a fitted sheet, locking your bag to your pad for zero slip all night.
- • **Customizable Climate Control:** Hood with cinch, no-draft collar, and zipper baffles let you seal in warmth or vent out heat effortlessly.

## Overview

The Big Agnes Lost Dog 0-30 Degree Sleeping Bag is a versatile, eco-conscious sleep system designed for 3-season backpacking and camping. Featuring a roomy 69" shoulder width, FireLine ECO synthetic insulation made from recycled materials, and a unique Flex Pad Sleeve that secures the bag to your sleeping pad, it delivers lightweight warmth and comfort with zero slipping. Weighing just 3 lbs and packing down small, it’s engineered for the modern adventurer who demands performance, sustainability, and convenience.

## Description

Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad

## Features

- Nylon
- Made in the USA or Imported
- LIGHT TECHNICAL COMFORT - The 30 F Lost Dog Sleep System Bag with Flex Pad Sleeve attaches to your pad just like a fitted bed sheet, creating a single, integrated sleep system to keep you and your bag on your pad all night. The first Sleep System to accommodate multiple pad widths… you get to choose!
- ROOMY, FULL FEATURED COMFORT - Streamlined Silhouette provides a roomy 69” of shoulder room and a cozy 49” in the vaulted footbox. The two-way, full length, anti-snag, locking zippers provide easy ‘in and out’ as well as setting fully open, closed, or in between so you control your comfort. Pillow Barn keeps your pillow tucked in tight, all night.
- FULL FEATURED WARMTH - The fitted jacket style hood with internal cinch control along with the “No-draft” collar, wedge, and zipper baffles give you complete control to fully vent or seal-up and lock out unwanted drafts. Specially designed to drape and contour to your body, reducing air pockets and keeping your body heat next to your body.
- TECHNICAL, LIGHT, PACKABLE - Insulated with FireLine ECO Synthetic Insulation 100% post-consumer recycled polyester. Light Nylon rip-stop shell with water and stain resistant treatment combined with a soft, cozy, and quiet Polyester lining creates the perfect balance of durable, light, and comfortable packability. Weighs just 3lbs. and packs down to 7 x 8.5 inches.
- LIFETIME WARRANTY - Fits campers up to 5' 10"; Fits a 20"-25" wide x 72” long pad. Temperature rating on these bags, like on all bags, is based on use with a 0 F rated pad. Sleep System bags should not be used without a sleeping pad (sold separately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Big Agnes |
| Color | Yellow/Navy |
| Occupancy | 1 Person |
| Shape | Rectangular |
| Seasons | 3 Seasons |
| Temperature Rating | Comfort |
| Age Range (Description) | All |
| Special Feature | Flex Pad Sleeve |
| Fill Material | Synthetic |
| Product Dimensions | 69"W |
| Closure Type | Zipper |
| Item Weight | 1.36 Kilograms |
| Outer Material | Synthetic |
| Fabric Type | Nylon, Synthetic |
| Size | Regular, Left Zip |
| Maximum Height Recommendation | 6.67 Feet |
| UPC | 841487122850 |
| Item Package Dimensions L x W x H | 16.85 x 10.94 x 9.49 inches |
| Package Weight | 1.41 Kilograms |
| Item Dimensions  LxWxH | 72 x 69 x 3 inches |
| Brand Name | Big Agnes |
| Suggested Users | mens |
| Number of Items | 1 |
| Manufacturer | Big Agnes |
| Part Number | BLD30RL19 |
| Model Year | 2021 |
| Style | 30 Degree |
| Fill Material Type | Synthetic |

## Product Details

- **Brand:** Big Agnes
- **Color:** Yellow/Navy
- **Occupancy:** 1 Person
- **Shape:** Rectangular
- **Seasons:** 3 Seasons
- **Temperature Rating:** Comfort
- **Age Range (Description):** All
- **Special Feature:** Flex Pad Sleeve
- **Fill Material:** Synthetic
- **Product Dimensions:** 69"W

## Images

![Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad - Image 1](https://m.media-amazon.com/images/I/61PRa3ZUE7L.jpg)
![Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad - Image 2](https://m.media-amazon.com/images/I/61c3eSQy2zL.jpg)
![Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad - Image 3](https://m.media-amazon.com/images/I/61GnnZWbd7L.jpg)
![Big Agnes Lost Dog 0-30 Degree Sleeping Bag | FireLine ECO Synthetic Insulation | Lightweight for Backpacking, Cozy for Camping | Attaches to Sleeping Pad - Image 4](https://m.media-amazon.com/images/I/71Uk3a0KX+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Finally! A sleeping bag for tall people!
*by R***. on October 4, 2022*

At 6’5”, I can finally say I found a sleeping bag that fits me! I brought this bag on a back country trip, and was comfy and warm the whole time.

### ⭐⭐⭐⭐⭐ Warm
*by J***E on December 7, 2024*

Amazing and warm! Love it.

### ⭐⭐⭐⭐ Good Bag but Poor Zipper and Temperature Rating
*by B***Y on November 17, 2023*

I bought this for a trip to Nepal and slept in it for nine consecutive nights using a small tent of average quality. I'm 6'6" and had plenty of length and space especially given I tend to move a lot when I sleep. I paired it with a Big Agnes insulated sleeping pad and was comfortable on the coldest night which was 30F. I think I would have been cold if it were much colder although I admit I didn't tighten the hood around my head. The rating of 15F seems too low. My main beef is with the zipper. It seems small and insufficient. It consistently gets caught in the fabric and I was worried that I would break it with a firm tug. My wife bought a different model bag from Big Agnes and her zipper broke the first night and will be sent back. My bag has an older elastic system to attach the sleeping pad. It worked great and I loved it. My wife's had the new tie attachment system from Big Agnes but I didn't like it as much. One note not effecting the score, the Big Agnes system relies on the sleeping pad to provide all of the insulation from the ground. Their inflatable pads ship with a patch kit but if a seam were to blow out it could create a serious problem on a cold night. The user would be forced to sleep on the ground without insulation. In summary, I like to bag assuming the zipper holds up, especially for the space and design.

## Frequently Bought Together

- Big Agnes Lost Dog (FireLine Eco) Sleeping Bag
- Big Agnes Rapide SL Insulated Sleeping Pad, Orange, Regular (20X72)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/233279686-big-agnes-lost-dog-0-30-degree-sleeping-bag-fireline](https://www.desertcart.nl/products/233279686-big-agnes-lost-dog-0-30-degree-sleeping-bag-fireline)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-19*