Klean Kanteen has just introduced this non-toxic Sippy Cup for toddlers. It is made with stainless steel, and it does not have epoxy coating in the inside. It’s coupled with a non-leaching #5 polypropylene adaptor and #5 polypropylene sippy spout. This cup does not contain the Bishphenol-A chemical, a potent hormone disruptor found to leach from hard, plastic (particularly #7 polycarbonate plastic). The adaptor works with the Avent sippy spouts, and it can also fit a sports cap or stainless steel flat cap.
Available from Amazon.