US: 2T-4T to Europe Size 15-17
Cross-market children’s socks, tights, hosiery, leg warmers, and dance tights sizing conversion mapping 2T-4T specifications into 15-17.

Analyzing Size Equivalence Across Markets
US: 2T-4T: Corresponds to a foot length of 15.5 (6.1 ), matching US shoe size 8-9, and age range 24–48 months.
Europe Size 15-17: Corresponds to a foot length of 9.5 (3.7 ), matching US shoe size 1-2, and age range 0–6 months.