OK, get ready for photo overload! Please note that this tutorial comes with a small amount of sewing knowledge assumed.
First you hem the sides and bottom

Then trim your extra piece of fabric to about 5 x 10


Hem the top of the pocket, set aside for later.
Now for the strap, fold in half and sew the side and the bottom, turn right side out. Set aside.
Now for the boning (boneing?)

Place the middle of the boning in the middle of the fabric, right along the unhemmed top, with the boning curving up (like it's smiling at you).
Roll fabric over boning until it curves up again.


Be sure to mark the ends of the boning.

Ok, now put the strap on, on the left side of the boning (with the wrong side of the fabric facing you), with the salvage facing the top at first-sew along the boning enclosed stitching.
Now fold the strap up and sew again.
Now for the Velcro. Turn the fabric so that the right side is facing you. Pin the "hook" part on the left side of the boning, so that the edge of the Velcro is at the edge of the boning (opposite side of the strap). Sew on.
Now put the "loop" part on the strap, about an inch from the bottom.


So this is how it will attach.
Now for the pocket, put the bottom of the pocket about 6 1/2" from the top of the cover, so the middle of the pocket is also in the middle of the boning.

Sew until you have about this much left on both sides.
Fold the sides over, and then fold the whole pocket up. Sew along the sides.
Then sew a line down the middle, so that you have two pockets (I use them for my breastpads)
This is what the pocket looks like from the inside.
That's it! You're done! :) Did you survive? My toddler barely did, apparently.