best cup sippy transition

NUK 5 fl oz Plastic Perfect Match Straw Learner Cup

PAW Patrol 7oz Weighted Straw Trainer Cup - 6m+: BPA-Free, Stainless Steel, Flip-Top Lid, Chase Design

Chicco 9 fl oz Insulated Flip-Top Straw Cup 12 Months - Blue Discover/Teal - 2pk

16oz Vacuum Straw Portable Drinkware 'Princess' - Zak Designs: Kids Tumbler, Disney Princess, Stainless Steel, Dishwasher-Safe

Munchkin Cool Cat Stainless Steel Straw Cup - Blue - 8oz: Insulated, BPA-Free, Leakproof, Spillproof

Nuby 8 fl oz 2 Handle Cup with No Spill Hard Spout - Neutral: BPA-Free, Leakproof, Includes 3 Lids

Re-Play 10 fl oz Grow With Me Cup - Kelly Green: BPA-Free, Non-Slip Grip, Leakproof, Includes Straw & 2 Lids

Nuby 6oz Mini Gripper Cup - Girl - 3pk

Re-Play 10 fl oz Grow With Me Cup - Navy: Non-Slip Grip, BPA-Free, Leakproof, Portable Drinkware

Re-Play 10 fl oz Holiday No-Spill Sippy Cups - Christmas - 4pk: BPA-Free, HDPE Material