# Trek Down Sleeping Bag

> Trek Down Sleeping Bag by Sea to Summit costs $364.00 for Temp rating: 30°F, Size: Regular at Sea to Summit, the brand's official store, as of October 18, 2026. Returns: 60 days from purchase to request a return; opened or used items are not accepted; excluded: final sale. Checkout happens on the seller's own store; Coreplex adds no fees.

## At a glance

| Field | Value |
| --- | --- |
| Brand | Sea to Summit |
| Sold by | Sea to Summit (the brand's official store) |
| Price | $364.00 for Temp rating: 30°F, Size: Regular |
| Price checked | October 18, 2026, before tax and shipping. The live page and the seller's store have the current price. |
| Availability | In stock at the seller when checked |
| Condition | new |
| Size options | Long, Regular |
| Temp rating options | 0°F, 15°F, 30°F |
| Rating | 4.8 of 5 from 202 reviews on the seller's store |
| Shopify catalog ID | 25Gv6KfPB8hZnFm7cHeaER |

Buy at Sea to Summit: https://seatosummit.com/products/trek-down-sleeping-bag

## Shipping and returns

Returns, refunds and shipping follow Sea to Summit's own policy, not Coreplex's.

In short: 60 days from purchase to request a return; opened or used items are not accepted; excluded: final sale.

| Term | Policy | Exact wording |
| --- | --- | --- |
| Return window | 60 days | "You can return an item for a full refund within 60 days of your purchase date." |
| Window counts from | purchase | "You can return an item for a full refund within 60 days of your purchase date." |
| Item condition | unused, original packaging | "All items must be returned in the original, unused condition and must include all original packaging." |
| Opened items | not accepted | "If you are doing a return and the original card you used to purchase the item is no longer in working order the refund will still post to the account associated with the credit card." |
| Not returnable | final sale | "Final sale items cannot be returned." |
| Refund goes to | original payment method | "Please allow 7-10 days for refunds to process through your original form of payment." |
| Refund timing | 60 days | "You can return an item for a full refund within 60 days of your purchase date." |

Read from the seller's refund policy on 2026-10-18.

- Refund policy: https://checkout.shopify.com/24672501/policies/1317961756.html
- Shipping policy: https://checkout.shopify.com/24672501/policies/25417351341.html

## Other stores selling it

Coreplex counts another listing as the same item only when it shares a Shopify catalog ID or barcode; lookalikes are never priced as equals. Live check: https://coreplex.ai/p/seatosummit.com/trek-down-sleeping-bag · MCP: get_passport / compare_prices with product_url https://seatosummit.com/products/trek-down-sleeping-bag

## What Sea to Summit says

Trek Down Sleeping Bag If you've ever wished for a less-constrictive sleeping bag that keeps you comfortable in a variety of cool-to-warm conditions, the Trek may become your go-to bag. The Free-Flow Zip system allows you to open the bag sequentially for ventilation up to the point where it is opened flat as a quilt - you can even secure the snaps around your shoulders, open the footbox zipper and 'wear' the Trek around camp. 650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment keep you insulated in damper conditions. Slip an Aeros Pillow into the hood and enjoy a great night's sleep - wherever your travels take you. Tech Specs Materials Shell: 100% polyester Lining: 100% polyester Down Fill: 80/20 Duck Down Stuff Sack: 100% nylon - excluding trims Zipper Configuration Full length YKK #3 side zip, two sliders. YKK #5 foot opening zip. Insulation RDS certified, 650+ fillpower duck down with a non-PFC Ultra-Dry Down treatment Specifications by Temp Rating & Size Temp Rating & Size Weight Packed Weight Dimension Packed Size Compressed Volume Length Recommended User Height Fill Weight Temp Rating (ISO Lower) Temp Rating (ISO Comfort) 30°F / Regular 1119 g \| 39.5 oz 1197 g \| 42.2 oz 196 x 79 cm \| 77.2 x 31.1 in 41 x 22.5 x 15.5 cm \| 16.1 x 8.9 x 6.1 in 8.2 L 196cm \| 77.2in 183 cm \| 6 ft in 380 g \| 13.4 oz -1 °C \| 30 °F 3 °C \| 37 °F 30°F / Long 1253 g \| 44.2 oz 1331 g \| 46.9 oz 211 x 84 cm \| 83.1 x 33.1 in 41 x 22.5 x 15.5 cm \| 16.1 x 8.9 x 6.1 in 8.8 L 211cm \| 83.1in 198 cm \| 6 ft 6 in in 437 g \| 15.4 oz -1 °C \| 30 °F 3 °C \| 37 °F 15°F / Regular 1436 g \| 50.7 oz 153

## Frequently Asked questions (from the seller's page)

What are the differences between the Trek and the Ascent? The Trek has a broader cut and is intended for travel/camping/some backpacking. The Ascent is a more technical bag for ambitious backcountry use.

## Materials (from the seller's page)

Shell: 100% polyester; Lining: 100% polyester; Down Fill: 80/20 Duck Down; Stuff Sack: 100% nylon - excluding trims Zipper Configuration Full length YKK #3 side zip, two sliders. YKK #5 foot opening zip. Insulation RDS certified, 650+ fillpower duck down with a non-PFC Ultra-Dry Down treatment 30°F Regular 30°F Long 15°F Regular 15°F Long 0°F Regular 0°F Long Weight 1119 g 39.5 oz 1253 g 44.2 oz 1436 g 50.7 oz 1611 g 56.8 oz 1895 g 66.8 oz 2098 g 74.0 oz Fill Weight 380 g 13.4 oz 437 g 15.4 oz 635 g 22.4 oz 735 g 25.9 oz 1000 g 35.3 oz 1163 g 41.0 oz Compressed Volume 8.2 L 8.8 L 10.6 L 12.2 L 14.2 L 15.9 L Temperature Rating (ISO Lower) -1 °C 30 °F -1 °C 30 °F -9 °C 16 °F -9 °C 16 °F -18 °C 0 °F -18 °C 0 °F Women's Temperature Rating (ISO Comfort) 3 °C 37 °F 3 °C 37 °F -3 °C 27 °F -3 °C 27 °F -11 °C 12 °F -11 °C 12 °F Recommended User Height 183 cm 6 ft in 198 cm 6 ft 6 in in 183 cm 6 ft in 198 cm 6 ft 6 in in 183 cm 6 ft in 198 cm 6 ft 6 in in Imperial Metric

## Key features (from Shopify's product catalog)

- Free Flow Zip system enables sequential ventilation and flat sleeping for warmth and airflow
- 650 FillPower duck down insulation with non-PFAS Ultra Dry treatment keeps you dry in damp conditions
- Recycled 20D polyester shell with non-PFAS DWR finish blocks wind and moisture
- Tapered rectangular fit provides spacious comfort and easy movement
- Multiple temperature rating options for versatile use in varying climates

| Spec | Value |
| --- | --- |
| Shell Material | 100% recycled polyester with non-PFAS DWR finish |
| Lining | 100% polyester |
| Down Fill | 650 FillPower duck down |
| Insulation | RDS certified |
| Available Sizes | Regular, Long, Short |
| Temperature Ratings | 30°F, 15°F, 0°F, 9°C, 16°C, 18°C, 27°C, 37°C, 41°C, 46°C, 50°C, 55°C, 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, 90°C, 95°C, 10 |
| Weight | 1119 g |
| Packed Size | 41 x 22.5 x 15.5 cm (Regular), 46 x 27.5 x 18 cm (Long), 46 x 27.5 x 18 cm (Short) |
| Length | 196 cm (Regular), 211 cm (Long), 183 cm (Short) |

## What Coreplex could not confirm

- Brand confirmation from the brand itself. The brand has not claimed this listing on Coreplex.
- Whether other stores sell this exact item. Coreplex only calls two listings the same item when they share a Shopify catalog ID or a barcode.
- Independent evidence for claims in the listing. Claims are the seller's own.
- A barcode (GTIN) for this listing. Without one, price comparisons with other stores are only possible through Shopify's own catalog grouping.
- Prices for the other options: the price above is for the option shown only.

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Source: Sea to Summit's public Shopify listing, read 2026-10-18. Cite as: Coreplex, "Trek Down Sleeping Bag", https://coreplex.ai/p/seatosummit.com/trek-down-sleeping-bag.html