Reebok's laceless design

Has anyone ever seen or used a pair of Reebok boots that employs this technology ? I always like my boots nice and tight, I was wondering how tight you can get your boots when using this "TPU lace cover" and not actually laces.

Any info would be great.

[eg www.eastbay.com/catalog...RD%20SEARCH/mvpid--~0/]