American Breast Care Post-Mastecomy Zipper Front, Pocketed Camisole #952, in White.  

Per Manufacturer:

"952 Post Mastectomy Camisole with Drain Management

Use the Zipper-Front 952 camisole immediately following a mastectomy, lumpectomy or post breast surgery for drain management. The 952 camisole has a zip-front and detachable shoulder clasp for easy step-in entry. The zipper features a comfort strip pad to prevent zipper irritation. Two hook & loop attachable pouches fasten to the interior elastic band for drain management. Two triangular puff leisure forms are included with every camisole."