Medela Safe & Dry Washable Bra Pads are made from a micro-porous fabric that allows your skin to breathe. Washing the bra pads before using them for the first time will improve their absorbency - just pop them in the machine at 40°C to 60°C, using your usual detergent, but no fabric conditioner. Make sure the bra pads are completely dry before wearing. Then wash them in the same way again after every use. To use your breast pads, simply place the matt side on your lactating breast and hold in place with your bra. Any leaking breast milk will be held in the absorbent core, while the edges of the breast pads are specially sealed to help ensure milk doesn't escape from there, either. The washable bra pads contain material with antimicrobial properties that helps to prevent bacteria from growing. This bra pads are thin and contoured to the shape of your breast for a natural, smooth feel under your bra. These are available in packs of four reusable breast pads.