Europe Size 44-46 to US: M
Cross-market adult neck gaiter, snow gaiter, winter gaiter, and face shield apparel conversion mapping 44-46 specifications into M.

Analyzing Size Equivalence Across Markets
Europe Size 44-46: Corresponds to a neck/face circumference baseline of 42 (16.5 ), vertical height coverage of 28 (11 ), and fit type Standard / Regular.
US: M: Corresponds to a neck/face circumference baseline of 38 (15 ), vertical height coverage of 25 (9.8 ), and fit type Standard / Regular.