Hardscarbble bibs have a full zippered leg on one and 7/8 on other. This all easier removal when wearing boots.
Stika is standard bib design with 7/8 on both sides. I do have some huge 1800 gram rubber boots and don't have a problem getting the boots though the zippered open leg openings
Hardscarbble bibs have a thin water resident membrane on the lower 1/3rd of the pants leg. Sheds water nicely wearing regular boots but really shines when needing to tuck pant leg into rubber boot.