Check the selected size against the other HISEA entries
This is the size-10 listing, alongside size-11 and size-13 records with very similar titles. Do not count those as three different boot designs. The distinct images alone do not establish a new material, better traction or added protection.
Ask the seller to confirm the size shown on the actual boot and whether the supplied size chart is in men’s US sizing. If you use a women’s shoe size, compare foot measurements rather than applying an assumed conversion to an unspecified chart.
PVC coverage and its limits
The title presents a molded rain-boot format for wet outdoor work. That is useful context for shoppers who want something washable after muddy chores. It does not establish resistance to agricultural chemicals, even though agriculture appears in the marketing title.
The waterproof and slip-resistant claims remain seller-described for this exact ASIN. Obtain model-specific documentation where workplace approval depends on them. In fitting, check toe clearance when kneeling and enough heel hold to keep the foot from sliding forward; these are more useful checks than ordering a larger number just to accommodate thick socks.