How waterproof are cationic backpacks?

Cationic backpacks typically refer to backpacks made with cationic resin materials, which do offer certain advantages in terms of waterproofing. Cationic resin itself has strong hydrophilicity, effectively preventing water from penetrating the backpack and keeping internal items dry. While not completely waterproof, it provides good protection against everyday rain or splashes.

However, it's important to note that a backpack's waterproofing also depends on its design and manufacturing process. For example: Sealing: Some cationic backpacks use waterproof stitching to reduce the possibility of water seeping through gaps.

Coating: A waterproof coating on the backpack's exterior enhances its effectiveness.

Sealing Design: Waterproof zippers further improve waterproofing.

Overall, cationic backpacks offer good waterproofing, but they may not completely prevent water penetration during heavy rain or prolonged exposure to water.