Thermos' Foogo straw cup is ideal for older toddlers due to its size and flip-top lid. The straw and lid components are a far superior design to other straw cups we've had, and the parts come apart easily for cleaning. The cup lived up to its "Leak Proof" title with its lid closed. The first-model-year Foogo sippy fared poorly in our drop test; dropped from both 45- and a 90-degree angles, it suffered dents in its bottom edge through the weak plastic frame and showed discolored denting in the plastic as well, making us wonder whether a bit more abuse would break off the bottom shell completely. The design has since been reworked to include a thick, full-base bumper similar to the one on the Foogo sippy - an improvement good enough to make this one of the best straw cups we've used.