Yes! We believe this product is Soy free as there are no Soy ingredients listed on the label.

Is Silicone Membrane; Designed for Spectra S1 Spectra S2, 9 Plus Backflow Protector and Maymom Backflow Protectors - Pink Soy Free?

Yes! We believe this product is Soy free as there are no Soy ingredients listed on the label.
Soy Free? Silicone Membrane; Designed for Spectra S1 Spectra S2, 9 Plus Backflow Protector and Maymom Backflow Protectors - Pink | Spoonful