Use the listing to locate a variant
Start with the retailer’s selected size and width, then check the style number before treating this as the boot you intended to buy. Several listings use the same Lansing Mid title. Their presence is useful for tracing an offer but does not create several different boot models.
A replacement buyer should match the inside label of the old boot where possible. The phrase Lansing Mid alone is less precise than a style code and width, and it cannot tell you whether a seller is combining listings for different selections.
Waterproof is the defining branch
The manufacturer documents a waterproof Lansing Mid and distinguishes it from Lansing Low in its work-hiker discussion. The reason to consider the Mid is therefore the boot format and documented water barrier, subject to your workplace requirements. It is not evidence that every KEEN shoe bearing the Lansing name is waterproof.
Think about the route water takes during your work. Rain striking the upper and water reaching over the collar are different exposures. For tasks involving deeper liquid or chemicals, this title alone does not establish the required coverage or material compatibility. That decision needs the actual job specification.
When another listing is more helpful
The Raven/Tawny Olive 12 D page is more explicit if that is your required size. The Dark Olive/Black 10 EE page provides a different stated width and length. Neither variant should be ordered merely because it appears in stock when your fitted size does not.
If the retailer cannot resolve which Lansing Mid is attached to this offer, use a clearer listing rather than assuming the shared photograph proves a match. The aim is to obtain the right documented boot, not to choose the most detailed-looking product card.