Speak softly and carry a BigStack. Yakima's BigStack has integrated padding and easier strap management, extreme stability, lockability with SKS lock cores and it folds down when not in use. Integrated padding Safe guards your sweet boat from dents and dings. A closed ring and anchor head design works to easily catch straps; makes it Easy to tie your boat down from any angle. When you aren't hauling your boats folding the BigStack down gives you a sleeker profile and saves the lives of uncountable bugs. Your boat is only as secure as your rack, the BigStack will lock to your rack with SKS lock cores (sold separately)