The owner of the directory can list/navigate into it.
Additionally the SUID bit is set, which normally has no effect, but on some systems means new files and subdirectories created in this directory will inherit its user ID.
A member of the directory's group other than its owner cannot access it at all.
Any other user on the system can read, write, and list/navigate into it.
Additionally the sticky bit is set, which means any sub-resources in this directory can only be renamed, moved, or deleted by their respective owners. Note that the sub-resources themselves may be viewed/edited/etc. depending on their own respective permissions.