Best bottle for breastfed baby

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I have to switch to formula beacuse I'm drying up. I hardly produce anything anymore and have tried everything to get my supply back, I've been fighting it for so long. I feel like I've failed but I am going out and buying formula and bottles today. My son has refused tomee tipee and will only drink out of the spectra bottles that came with my pump but I only have 2. What bottles did your baby take?