Waterproof Backpacks – Stay Dry on Every Adventure

A water-resistant backpack and a waterproof backpack are not the same thing. Water-resistant means the fabric sheds light rain for a while before soaking through. Waterproof means welded seams, waterproof zips or roll-top closures, and contents that stay dry even when the bag is submerged. If you're kayaking, sailing, hiking in heavy rain, or travelling in tropical climates, you need the latter.

Travel Gear stocks waterproof backpacks and dry bags from Sea to Summit and other trusted outdoor brands. We're an authorised Australian stockist shipping from our Charlestown NSW warehouse with fast delivery across Australia.

Types of Waterproof Backpacks

Roll-Top Dry Bags

The most reliably waterproof option. A roll-top closure creates a watertight seal when rolled down three or more times and clipped. No zips to fail, no seams to leak. Sea to Summit's Ultra-Sil Dry Sack range starts at 1L and goes to 35L — the 20L size is the most popular for day trips and water activities.

Waterproof Zip Backpacks

Use waterproof zips (similar to those on drysuits) rather than standard zips. More convenient than roll-tops for frequent access, but slightly less waterproof under sustained submersion. Good for kayaking, sailing, and heavy rain where you need to access contents regularly.

Standard Packs with Rain Covers

Not truly waterproof, but a quality rain cover over a standard hiking pack keeps contents dry in heavy rain. The cover protects the pack fabric and zips but doesn't seal the bag completely. Adequate for hiking and travel in wet weather; not suitable for water activities where the bag may be submerged.

Waterproofing Ratings Explained

• Water-resistant: Fabric sheds light rain; seams and zips are not sealed. Contents will get wet in sustained rain
• IPX4: Splash-proof from any direction. Adequate for light rain and splashing
• IPX6: Protected against powerful water jets. Suitable for heavy rain and spray
• IPX7: Submersible to 1m for 30 minutes. Suitable for kayaking and water activities
• IPX8: Submersible beyond 1m. The highest standard for consumer waterproof products

What to Look for in a Waterproof Backpack

• Closure type: Roll-top for maximum waterproofing; waterproof zip for convenience
• Seam construction: Welded or taped seams are waterproof; stitched seams are not
• Capacity: 10–20L for day trips; 20–35L for multi-day water activities
• Straps: Padded shoulder straps and a chest strap for comfort when carrying loaded
• Material: 70D–210D nylon or TPU-coated fabric for durability and waterproofing

Frequently Asked Questions

Are waterproof backpacks fully submersible?

It depends on the design. Roll-top dry bags with welded seams are submersible when properly sealed. Waterproof zip packs are typically splash-proof and rain-proof but not designed for sustained submersion. Check the IP rating or manufacturer's submersion claim for the specific product.

Can I use a waterproof backpack for hiking?

Yes — a waterproof backpack works well for hiking in wet conditions. Roll-top dry bags are less convenient for frequent access than standard hiking packs, but they keep contents completely dry in heavy rain and stream crossings. For hiking in variable conditions, a standard hiking backpack with a rain cover is often more practical.

How do I clean a waterproof backpack?

Wipe down with a damp cloth and mild soap. Avoid machine washing — it can damage waterproof coatings and welded seams. Rinse with fresh water after salt water exposure and allow to dry fully before storing. Don't store compressed or folded for extended periods, as this can crease and weaken the waterproof coating. For more on choosing the right pack for your adventure, see our ultimate luggage and bags buying guide.