Coreplex · Brands · Sea to Summit
Big River Dry Backpack
Big River Dry Backpack by Sea to Summit costs $169.95 for Colour: Jet Black, Size: 50L 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
| Brand | Sea to Summit |
|---|---|
| Sold by | Sea to Summit (the brand's official store) |
| Price | $169.95 for Colour: Jet Black, Size: 50L |
| 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 | Jet Black, Picante |
| Size options | 30L, 50L, 75L |
| Rating | 4.9 of 5 from 254 reviews on the seller's store |
| Shopify catalog ID | 3Ow9oyQCcZCthrRAq9Vwr5 |
Shipping and returns
Returns, refunds and shipping follow Sea to Summit's own policy, not Coreplex's. Read it before buying, especially for opened, hygiene or final-sale items.
In short: 60 days from purchase to request a return; opened or used items are not accepted; excluded: final sale.
| Term | Sea to Summit's 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 Sea to Summit's refund policy on October 18, 2026. Terms the policy doesn't settle are left out rather than guessed.
Other stores selling it
Coreplex counts another store's listing as the same item only when it shares a Shopify catalog ID or barcode with this one; lookalikes are shown as similar and never priced as equals. The live page runs that check now. AI agents can run it with the Coreplex MCP tools get_passport or compare_prices (product_url: https://seatosummit.com/products/big-river-dry-backpack).
What Sea to Summit says
Keep your gear reliably dry and carry it comfortably on your back. Big River Dry Backpacks are a durable, and abrasion resistant option that uses a strong 420D nylon fabric. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or exploring some motorcycle touring, Big River products are the perfect storage bags to keep your gear dry. Adjust the comfortable straps around your shoulders, sternum and waist to keep it in place. A white interior laminate affords greater visibility, and lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon non-wicking roll-top closure keeps water out, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. It was also designed with an oval base to save space when packing and prevent it from rolling away. Features Reliably Dry: Waterproof, roll-top closure secured with our patented Field Repair Buckles for a reliable seal and double-stitched, fully taped waterproof seam Minimalist Carry: Streamlined and adjustable EVA foam pack harness with supportive sternum strap and removable 1.5" / 38mm webbing hipbelt holds pack firmly in place Built Tough: Heavy-duty 420D Nylon fabric is super-strong, abrasion and puncture-resistant with a triple-coated oval base for increased water-shedding and durability Grab + Lash: Strong and versatile grab-handle and daisy-chain for confident handling and lashing to kayaks, bikes, motorbikes and roofracks See Inside: White interior TPU laminate reflects light to provide greater visibility of
Frequently Asked questions (from the seller's page)
Is the harness adjustable? A non-adjustable harness was chosen for durable simplicity on complex days of hauling gear.
Materials (from the seller's page)
100% Nylon Hydrostatic Head 10000 mm 30L 50L 75L Weight 670 g 23.6 oz 760 g 26.8 oz 820 g 28.9 oz
Dimensions (from the seller's page)
22 × 29 × 55 cm 9 × 11 × 22 in 28.5 × 34.5 × 60.4 cm 11 × 14 × 24 in 36.5 × 33 × 67.5 cm 14 × 13 × 27 in Imperial Metric
Key features (from Shopify's product catalog)
- Patented field repair buckles: Allow quick, tool-free replacement for lasting water resistance
- Triple-coated oval base: Increases water shedding and prevents rolling for secure packing
- 420D abrasion-resistant nylon fabric: Ensures long-lasting durability in rugged conditions
- White interior TPU laminate: Enhances gear visibility and provides a clean, professional look
- Minimalist EVA foam harness: Offers adjustable comfort with sternum and hip belt for a secure fit
| Material | 420D nylon, Thermoplastic polyurethane (TPU) |
|---|---|
| Closure | Hypalon non-wicking roll-top with field repair buckles |
| Seams | Double-stitched, fully taped, waterproof |
| Carry Options | Handle, shoulder strap, chest/waist strap, backpack straps |
| Storage | Single compartment |
Summarized by Shopify's catalog and checked by Coreplex against the seller's own text: claims the seller's text contradicts are left out. Confirm details with Sea to Summit.
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.