A waterproof backpack is exactly that, no matter whether it is rained on or dunked in water, if it is properly sealed, its contents should be fully protected from water, meaning the bag is fully waterproof. However, water-resistant backpacks can withstand some rain or water but the interior contents will eventually become wet if the bag is exposed to water for long periods. If you need a truly waterproof dry backpack, look for models with IP6x and IP7x ratings.
Waterproof and water-resistant backpacks are both designed to provide protection against moisture, but they differ in the level of protection they offer.
Waterproof Backpacks:
Waterproof backpacks are designed to keep water out completely, providing a high level of protection against water intrusion. These backpacks are made from materials that are impermeable to water, such as rubberized fabrics, PVC, or high-quality waterproof membranes. They typically have sealed seams and waterproof zippers, which prevent water from seeping through the stitching and openings.
Pros:
Excellent protection against rain, snow, and water submersion.
Ideal for outdoor activities, hiking, and travel in wet conditions.
Keeps your belongings completely dry.
Cons:
Often more expensive than water-resistant backpacks.
Can be less breathable, leading to potential sweat accumulation inside the backpack.
Usually, less variety in design options compared to water-resistant backpacks.
Water-Resistant Backpacks:
Water-resistant backpacks are designed to repel water to some extent but are not entirely impervious to it. These backpacks are made from materials like treated nylon or polyester that have a certain level of water-repellent coating applied to their surface. Water-resistant backpacks can withstand light rain or splashes but may not keep your belongings dry in heavy rainfall or if submerged in water.
Pros:
Offer protection against light rain and splashes.
Often more affordable than waterproof backpacks.
More breathable and suitable for everyday use.
Cons:
Limited protection in heavy rain or water submersion.
The level of water resistance may diminish over time with wear and tear.
In summary, if you need a backpack for activities where you expect exposure to heavy rain, water submersion, or extreme weather conditions, a waterproof backpack is the better choice. On the other hand, if you need a more versatile and affordable option for everyday use or for light outdoor activities, a water-resistant backpack should suffice for protecting your belongings from light rain and splashes.