25L Roll Top Dry Backpack | UNDA

To keep your UNDA waterproof bag in top condition, rinse it with fresh water after use, especially if it has been exposed to saltwater, sand, or mud. Let it air dry completely before storing it to maintain its waterproof performance. Check caring instructions for each dry bag for more details. 

The UNDA dry bag range is officially endorsed by PADI (Professional Association of Diving Instructors), the world’s leading scuba diving organisation with over 29 million certified divers. The range has also been tested by PADI AmbassaDivers including ocean conservationist Mike Coots. This exciting collaboration ensures that the bags meet the high standards required by divers and ocean explorers.

Yes, our dry bag backpacks are completely waterproof making them ideal for any adventure. You have complete peace of mind knowing everything inside will stay dry.

Dry bag backpacks are designed to keep the contents protected from the elements like water, mud and dust. They are very versatile bags and can be used for exploring outdoors, travel and commuting. 

Roll top backpacks have a number of benefits including:

• Expandable storage: The roll top design makes it easy to increase the bag's capacity by rolling the top up. It can also be made more compact and rolled down to its standard size when needed. 
• Versatility: Roll top bags are incredibly versatile and can be used for a number of different activities, including hiking outdoors, travel, daily commuting and water sports. Our 25L also includes the convenient two-way closure system, giving you options for an alternative look and feel.
• Increased security: Roll top bags are far more difficult for pickpockets to attempt to access. 
• Minimalist design: Roll top bags tend to have fewer exterior pockets and zips giving them a more minimalist look.
• Waterproof: While not all roll top backpacks are waterproof, the 25L is fully submersible.

The purpose of a roll top backpack is to offer greater protection for the contents of your bag compared to a traditional zip closure backpack. Our UNDA range is waterproof and submersible, providing extra protection.

They are built to the highest standards and are designed to last you for years, unlike many cheap backpacks. Our dry bag backpacks come with a 10 year limited warranty to show how confident we are in their quality. 

All GROUNDTRUTH products are 100% vegan. We do not use any type of animal products in our materials.

Stormproof in the context of backpacks refers to the ability to withstand heavy rain. Our bags are designed with durable, water-resistant materials and we use the highest quality YKK AquaGuard® zips to ensure your belongings stay dry and protected even in stormy weather. To make certain your bag is fully stormproof, please make sure all the zips are closed completely and secure.

Yes, we provide a warranty on all of our UNDA waterproof bags, covering defects in materials and craftsmanship. If you experience any issues with your bag, you can contact the customer support team for assistance. This ensures that your purchase is protected.

For more details, please visit our warranty policy page.

Absolutely! Whilst the UNDA waterproof bags are designed to meet the needs of divers, they are also perfect for outdoor activities, including kayaking, paddle boarding, sailing, hiking, and cycling. Equally, the 25L UNDA Backpack is a prefect fit for urban commuters as it has an additional padded Tote insert to organise all your work day essentials while fully protected. The UNDA range ensures that your belongings stay dry on any adventure while looking sleek and stylish.

Yes, sustainability is at the heart of the UNDA collection. Each dry bag is made using 100% recycled materials, such post consumer Nylon, discarded fishing gear, post-consumer plastic bottles and our patent-pending hardware made from captured CO2 emissions. This collection helps reduce environmental impact while providing high-performance waterproof bags for outdoor enthusiasts and divers.

Yes, the UNDA waterproof bags feature IPX67 waterproof ratings, ensuring they can withstand heavy splashes, rain, and even full submersion.
The backpack and 1L Sling feature IPX67-rated Waterproof zip, and all the UNDA bags are fully welded to ensure they are fully submersible when securely rolled.

The UNDA waterproof bags are made from 100% recycled materials and stand out due to their innovative design, developed in collaboration with PADI, to meet the needs of divers and ocean explorers. These dry bags are sustainable and offer a high level of waterproof protection, durability, and practical features. While most dry back backpacks are just a black hole, the 25L is a two-in-one design, featuring a convenient 20L standalone tote insert.

Yes, you can get waterproof backpacks. There are various levels to a bag being waterproof, from stormproof which provides resistance to water, to IPX7 which enables a bag to be completely submersible. For a bag to be 100% waterproof, the bag will need to be constructed with a welding method and use either 100% waterproof zips or the role top function. Currently all our products in the RIKR Range are stormproof, whereas the UNDA, consisting of IPX67 dry bags are completely waterproof.