Maelstrom Swim Backpack 35L - Waterproof Swim Bag for Gym & Sports

In this review of the Maelstrom Swim Backpack 35L the bottom line is simple: it is a well-organized, waterproof swim bag for swimmers and active athletes who need roomy, reliable storage without extra bulk. The reviewer found the single biggest reason to buy is the combination of a true waterproof shell and a thoughtful internal layout that keeps wet gear separated from electronics and dry clothing. Built from upgraded waterproof polyester, this pack balances durability and weight so it performs as a swim team bag and a general water-sports carry-all.

Key Features

• Waterproof construction: The upgraded waterproof polyester protects contents from splashes and damp environments while remaining durable for frequent use.
• 35L capacity: A generous main compartment holds towels, training gear, and up to four packing cubes for longer sessions or travel.
• Dedicated wet/dry separation: The separate wet compartment and interior wet/dry pocket keep swimsuits and wet accessories isolated from electronics and clean clothes.
• Organizational pockets: Multiple interior zip pockets, a computer compartment, two side mesh pockets, and waterproof bottle pockets make gear easy to sort and access.
• Comfortable carry: Lightweight materials, breathable back padding, and ergonomic shoulder straps reduce strain when the bag is fully packed.
• Shoe cooler compartment: The thickened, leak-proof shoe compartment doubles as an insulated cooler for drinks and ice at the beach.

Who It's For

The Maelstrom Swim Backpack 35L is aimed at competitive swimmers, swim team members, triathletes, and anyone who regularly trains at pools or heads to the beach. Its waterproof shell and separate wet compartment make it especially useful for people who need to protect electronics or dry clothes while transporting wet gear.

Those who want a minimalist daypack or a technical backpack with frame support should look elsewhere, as this pack prioritizes waterproofing and organization over technical hiking features. If you need ultra-lightweight travel-only luggage without wet/dry separation, a different style may suit you better.

Pros & Cons

Pros

• Durable waterproof material keeps belongings dry and stands up to regular pool use.
• Thoughtful internal layout, including a computer compartment and multiple pockets, simplifies packing and access.
• Comfort-oriented design with breathable padding and ergonomic straps for extended carrying.
• Multiuse shoe compartment with leak-proof lining doubles as a small cooler for beach days.

Cons

• The bag is built for water activities and organization rather than technical hiking, so it lacks frame support and advanced trekking features.
• At 35L, it may be larger than needed for casual users who prefer a compact swim sling.

Specifications

Capacity	35L
Material	Upgraded waterproof polyester
Compartments	Large main compartment, separate wet/dry pocket, shoe compartment, three interior zip pockets
External pockets	Two side mesh pockets, waterproof bottle pockets
Comfort features	Ergonomic shoulder straps and breathable back padding
Additional features	Front velcro panel, side hanging loops, leak-proof shoe lining

Our Verdict

The Maelstrom Swim Backpack 35L is a sensible choice for swimmers and water-sport enthusiasts who value organization, waterproofing, and comfort. It delivers strong durability and useful pockets at a fair value, and the insulated shoe compartment is a handy extra for beach trips. Buy it if you want a purpose-built swim bag that keeps wet gear contained and electronics safe.

Frequently Asked Questions

Is the bag fully waterproof?
The shell is made from upgraded waterproof polyester and offers strong protection from splashes and wet environments; internal leak-proof linings add extra security for wet compartments.

Can this backpack hold a laptop?
Yes, there is a computer compartment suitable for a laptop or tablet; keep it in the padded compartment to protect it from damp gear.

Is the shoe compartment insulated?
Yes, the thickened shoe compartment has an upgraded leak-proof lining and can be used to hold ice and drinks as a small cooler.