Depending on the level of protection you need, you can choose between different levels of waterproofing. For each jacket, the level of waterproofing is graded on a scale of 1 to 5.
These ratings are developed through technical lab tests; the higher the rating, the more waterproof the jacket.
Ratings of 2 and 3 indicate that the jacket can offer protection during a shower with 6-12 cm of rainfall in 1-2 hours
A rating of 4 indicates that the jacket can offer protection during a thunderstorm with 30 cm of rainfall in 3 hours.
A rating of 5 indicates that the jacket can offer protection during a storm, with 1.8 m of rainfall in 4 hours!