Europe Size 104 to US: Newborn
Cross-market infant neck gaiters, toddler snow gaiters, kids' winter gaiters, and child face shields apparel conversion mapping 104 specifications into Newborn. Other clothing articles are handled in separate routes.

Analyzing Size Equivalence Across Markets
Europe Size 104: Corresponds to an age bracket of 4–5 years (approx. height baseline of 104 / 40.9 ), a head-and-neck opening circumference baseline of 24 (9.4 ), a length baseline of 43 (16.9 ), utilizing soft hypoallergenic stretch standards designed for infants, toddlers, and youth.
US: Newborn: Corresponds to an age bracket of Newborn (0–1 month) (approx. height baseline of 50 / 19.7 ), a head-and-neck opening circumference baseline of 14 (5.5 ), a length baseline of 16 (6.3 ), utilizing soft hypoallergenic stretch standards designed for infants, toddlers, and youth.