US: M to United Kingdom Size 8.0
Cross-market women’s glove conversion mapping M specifications into 8.0.

Analyzing Glove Size Equivalence Across Markets
US: M: Features a palm circumference of 19 (7.5 ), finger length of 7.5 (3 ), hand width of 8 (3.1 ), and hand length of 18 (7.1 ).
United Kingdom Size 8.0: Features a palm circumference of 20.5 (8 ), finger length of 8 (3.1 ), hand width of 8.5 (3.3 ), and hand length of 19 (7.5 ).