---
product_id: 678404036
title: "Sea to Summit Ascent Down Sleeping Bag"
brand: "sea to summit"
price: "$2353.22"
currency: USD
in_stock: true
reviews_count: 2
url: https://www.desertcart.ec/products/678404036-sea-to-summit-ascent-down-sleeping-bag
store_origin: EC
region: Ecuador
---

# Thermally efficient relaxed mummy fit 750+ fill power RDS-certified goose down 20D recycled nylon shell & liner Sea to Summit Ascent Down Sleeping Bag

**Brand:** sea to summit
**Price:** $2353.22
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your outdoor sleep game—comfort, warmth, and versatility in one sleek package!

## Quick Answers

- **What is this?** Sea to Summit Ascent Down Sleeping Bag by sea to summit
- **How much does it cost?** $2353.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/678404036-sea-to-summit-ascent-down-sleeping-bag)

## Best For

- sea to summit enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Conscious Durability:** 20D recycled nylon shell and liner with non-PFC DWR finish protect against wind and moisture sustainably.
- • **Versatile Camp Companion:** Box baffle construction prevents down migration, plus shoulder snaps and footbox zipper let you wear it around camp for ultimate convenience.
- • **Room to Move, Designed to Perform:** Relaxed mummy fit with technical hood and pillow compatibility ensures warmth without feeling cramped.
- • **Ultimate Warmth Meets Lightweight Packability:** RDS-certified 750+ fill power down with Ultra-Dry treatment keeps you cozy even in damp conditions without weighing you down.
- • **Customizable Comfort with Free Flow Zip System:** Ventilate or open flat as a quilt—adapt your sleep setup to any weather or mood effortlessly.

## Overview

The Sea to Summit Ascent Down Sleeping Bag is a 15-degree rated, lightweight, and spacious sleeping bag featuring RDS-certified 750+ fill power goose down with a water-resistant Ultra-Dry treatment. Its innovative Free Flow Zip System allows multiple configurations for temperature control, while the relaxed mummy fit and technical hood maximize warmth and comfort. Constructed with eco-friendly 20D recycled nylon shell and liner, it offers durable protection against wind and moisture, making it an ideal 3-season choice for serious campers and hikers.

## Description

desertcart.com: Sea to Summit Ascent Down Sleeping Bag, 15-Degree, Regular | Versatile 3-season down sleeping bag with RDS-certified 750+ fill power and a Free Flow Zip System balances warmth : Sports & Outdoors

Review: Himalayan approved - I am a 5’7” woman and took this on a 12 night trekking trip in the Bhutanese Himalayans in April. It got down to 30F and I was not cold at all and loved being able to cinch it around my face. I did have the bamboo/silk liner but that is because showers were minimal. Warmth wise, I wouldn’t have needed it. I thought about getting a sleeping bag 2.5x this cost and then I said to myself “nah I’ll be fine” and I was One important note is that I would never have done a backpacking trip with this if I had to carry my stuff because it is quite large and heavy. Luckily, there were mules It’s a great quality like all sea to summit things That is all
Review: Very good product, but not that warm - Very good product, but not as warm as described. For the reste, it super.

## Features

- Nylon
- Versatile 15-degree sleeping bag balances lightweight packability, spacious comfort, and technical performance with RDS-certified 750+ fill power goose down and a non-PFC Ultra-Dry Down treatment that retains warmth in damp conditions
- Free Flow Zip System provides excellent temperature regulation and multiple sleeping bag configurations; unzip in different positions for ventilation or open flat to use as a quilt in warmer weather
- Thermally efficient relaxed mummy fit offers room to move while maximizing warmth retention; technical hood accommodates a Sea to Summit Aeros pillow and compatible bags can zip together for shared sleeping space
- Lightweight 20D recycled nylon shell with a non-PFC DWR finish helps protect against wind and moisture while the 20D recycled nylon liner delivers soft, comfortable next-to-skin feel
- Box baffle construction with vertical torso baffles minimizes down migration and maximizes warmth retention; shoulder snaps and footbox zipper allow the bag to be worn around camp

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSC1JHYT |
| Additional Features | Lightweight |
| Age Range Description | Adult |
| Best Sellers Rank | #451,083 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #710 in Camping Sleeping Bags |
| Brand | Sea to Summit |
| Brand Name | Sea to Summit |
| Closure Type | Zipper |
| Color | green |
| Customer Reviews | 4.8 out of 5 stars 4 Reviews |
| Fabric Type | Nylon |
| Fill Material Type | Down |
| Global Trade Identification Number | 09327868157808 |
| Item Dimensions L x W | 77.2"L x 31.1"W |
| Item Weight | 1.02 kg |
| Manufacturer | Sea to Summit |
| Manufacturer Part Number | ASL041101-052003 |
| Material | Nylon |
| Maximum Height Recommendation | 6 feet |
| Model Number | ASL041101-052003 |
| Occupancy | 2 Person |
| Seasons | 3 Seasons |
| Shape | Mummy |
| ShellMaterial | Nylon |
| Size | Standard |
| Sport Type | Camping & Hiking |
| Temperature Rating | 15 degrees |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer guarantee against defects in materials or workmanship for the lifetime of the product |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Sea to Summit
- **Color:** green
- **Material:** Nylon
- **Occupancy:** 2 Person
- **Seasons:** 3 Seasons
- **Shape:** Mummy
- **Special Feature:** Lightweight
- **Sport:** Camping & Hiking
- **Temperature Rating:** 15 degrees

## Images

![Sea to Summit Ascent Down Sleeping Bag - Image 1](https://m.media-amazon.com/images/I/61P8hZLVqtL.jpg)
![Sea to Summit Ascent Down Sleeping Bag - Image 2](https://m.media-amazon.com/images/I/81WBkD1QajL.jpg)
![Sea to Summit Ascent Down Sleeping Bag - Image 3](https://m.media-amazon.com/images/I/7189+OMe8RL.jpg)
![Sea to Summit Ascent Down Sleeping Bag - Image 4](https://m.media-amazon.com/images/I/81V1a4JSS4L.jpg)
![Sea to Summit Ascent Down Sleeping Bag - Image 5](https://m.media-amazon.com/images/I/81j-cqFV8FL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Himalayan approved
*by B***P on August 24, 2026*

I am a 5’7” woman and took this on a 12 night trekking trip in the Bhutanese Himalayans in April. It got down to 30F and I was not cold at all and loved being able to cinch it around my face. I did have the bamboo/silk liner but that is because showers were minimal. Warmth wise, I wouldn’t have needed it. I thought about getting a sleeping bag 2.5x this cost and then I said to myself “nah I’ll be fine” and I was One important note is that I would never have done a backpacking trip with this if I had to carry my stuff because it is quite large and heavy. Luckily, there were mules It’s a great quality like all sea to summit things That is all

### ⭐⭐⭐⭐ Very good product, but not that warm
*by C***N on April 7, 2025*

Very good product, but not as warm as described. For the reste, it super.

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**Shop now:** [https://www.desertcart.ec/products/678404036-sea-to-summit-ascent-down-sleeping-bag](https://www.desertcart.ec/products/678404036-sea-to-summit-ascent-down-sleeping-bag)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-08-30*