You should be washing your bra in the shower.
This one is geared towards the ladies. Put your little laundry soap in the shower, and wash your bra in the shower. Once you're done. Hang it up to dry or throw it in the dryer for a little bit. You're saving water, doing two things at once, and you're hand washing it. So it won't get messed up when throwing it in the washer with other clothes. Such as hooks being bent, wire popping out, stiff getting tangled, lace getting ripped. No need for it. Sure. Bra bags exist but why would I spend the money on that when you could just ...wash it in the shower?