Anne of Denmark is dressed for the hunt in this 1617 portrait by Paul van Somer.
The Wikipedia article for Paul van Somer is here.
From bbc.co.
She looks ready to go hunting. Her sleeves are tabbed and she wears a free-floating semicircular ruff above the partlet above her décolleté scoop neckline. Her sleeves expand as they descend towards the elbow to reveal underlying material through slashes. Leather gloves and a feathered hat round out her outfit.
Keywords: 1617, van Somer, Anne of Denmark, Anne of Oldenburg, Queen of England, Queen of Scotland, Oldenburg family, Stuart family, Princess, Queen, British, floating ruff, cuffs, lace, gloves, bertha, floating ruff, scoop decolletage, curly coiffure, tabbed sleeves, puffed sleeves, feathered hat