Weather protection depends on the materials, seams, construction and condition of the footwear.
Water-resistant
Water-resistant materials help resist limited moisture such as light rain and splashes. This does not automatically mean the seams or the whole boot prevent water entry.
Waterproof
A waterproof claim should refer to the specific product construction and intended use. Water can still enter through the opening, and wear, damage or prolonged exposure can change performance.
Check the exact product
Read the listing for intended conditions and any limitations. Avoid assuming waterproof means suitable for deep water, prolonged immersion or every weather condition.
Care matters
Clean and dry footwear according to its instructions. Inspect seams and materials, and ask for clarification if a product claim is unclear.