"Velcro tabs" refers to small pieces of fabric with Velcro fasteners on them. They are used to securely hold things together or to keep something closed or organized. Full definition
It features a front panel that opens and closes with velcro tabs so you can sneak a peek at your baby whenever you want. (blog.guguguru.com)
(Make sure you secure velcro tabs to laundry tabs to prevent excessive wear and tear on your velcro — and the notorious diaper chain that comes out of the dryer!) (thenaturalmommy.com)
Soft velcro tabs close around the back away from little hands for a great fit without the bulk. (thefashionablebambino.com)