# Ultra-Sil Stuff Sack

> Ultra-Sil Stuff Sack by Sea to Summit costs $18.95 for Colour: High Rise, Size: 1.5L 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 | $18.95 for Colour: High Rise, Size: 1.5L |
| 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 |
| Colour options | Blue Atoll, High Rise, Zinnia |
| Size options | 1.5L, 3L, 5L, 8L, 13L, 20L |
| Rating | 4.7 of 5 from 68 reviews on the seller's store |
| Shopify catalog ID | 4S7K3FN0262HXPRv2m9af4 |

Buy at Sea to Summit: https://seatosummit.com/products/the-ultra-sil-stuff-sack

## 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/the-ultra-sil-stuff-sack · MCP: get_passport / compare_prices with product_url https://seatosummit.com/products/the-ultra-sil-stuff-sack

## What Sea to Summit says

The Ultra-Sil Stuff Sack is an ultralight but durable solution using a water-resistant, bluesign® approved Ultra-Sil 30D nylon fabric with Non-PFC DWR finish. Ideal for organizing gear in your pack or bag, these stuff sacks incorporate a reinforced pull handle on the base, a easy to operate drawcord with Capture Cord Lock and are available in several great colors. The slippery fabric and secure grab handle at the base are for effortless sliding in and out of packs. Features Water-resistant, bluesign® APPROVED Ultra-Sil 30D Nylon fabric with a PFC-free DWR finish Unique tear-proof drawcord throat with two super-strong Hypalon pull-tabs for easy operation Ultralight and super-strong, bluesign® APPROVED Ultra-Sil 30D Cordura® nylon fabric has a 2000mm hydrostatic head Double-stitched and reinforced stress points for added strength and durability Slippery fabric and secure grab handle at base for effortless sliding in and out of packs

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

What's the best use for this stuff sack set? This stuff sack set is best used for internal packing organization--perfect for frequent travelers.

## Materials (from the seller's page)

100% Nylon Hydrostatic Head 2000 mm 1.5L 3L 5L 8L 13L 20L Weight 16 g 0.6 oz 20 g 0.7 oz 25 g 0.9 oz 32 g 1.1 oz 44 g 1.6 oz 49 g 1.7 oz

## Dimensions (from the seller's page)

11.5 × 11.5 × 20.6 cm 5 × 5 × 8 in 13.9 × 13.9 × 23.4 cm 5 × 5 × 9 in 16.5 × 16.5 × 28 cm 6 × 6 × 11 in 19 × 19 × 32.5 cm 7 × 7 × 13 in 21.9 × 21.9 × 37.4 cm 9 × 9 × 15 in 25 × 25 × 43 cm 10 × 10 × 17 in Imperial Metric

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

- Water-resistant UltraSil 30D nylon fabric keeps gear dry in wet conditions
- PFC-free DWR finish provides eco-friendly water protection
- Reinforced pull handle and double-stitched stress points enhance durability
- Tear-proof drawcord throat with Hypalon pull tabs allows easy opening and closing
- Slippery fabric and secure base handle enable effortless sliding into packs

| Spec | Value |
| --- | --- |
| Material | UltraSil 30D nylon (Bluesign approved) |
| Finish | PFC-free DWR |
| Hydrostatic Head | 2000 mm |
| Closure | Drawstring with capture cord lock |
| Handle | Reinforced pull handle at base |
| Color | Blue |

## 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, "Ultra-Sil Stuff Sack", https://coreplex.ai/p/seatosummit.com/the-ultra-sil-stuff-sack.html