Every Drop Of Breastmilk Counts. NatureBond™ Silicone Breast Pump is one of the most natural ways to extract breastmilk manually using suction force, without the need of artificial mechanical pumps. The sleek and soft silicone design ensures comfort for breastfeeding mommies. NatureBond™ Silicone Breast Pump is every breastfeeding mom’s must-have.