This is what their fine print says:
FLOAT
This installation technique is an option on certain ENGINEERED HARDWOODS. Rather than being attached directly to the subfloor with an adhesive, the flooring "floats" over an underlayment placed between the wood and the subfloor. Shaw floating engineered wood floors must be glued together at the tongue-and-groove joint to complete and stabilize the installation. This installation technique allows the floor to expand and contract. Shaw offers a variety of underlayment options for your specific installation.
This installation technique is also applicable for LAMINATE flooring, plank construction in tile or wood designs. This type of "floating" laminate floor is engineered so that the edges of the planks fit together and lock into place without glue or hardware. (Note: Some products require adhesive on the end seams of the first row only.) Since those floors are "floating", proper expansion space must be maintained at all vertical surfaces. Expect moisture testing and some preparation of subfloors, according to their condition.
Shaw also has a floating version of RESILIENT LVT flooring. Our StaTite planks and tiles stick to each other, not the floor. Expect moisture testing and some preparation of subfloors, according to their condition.
It sure is a great looking floor!