Such a beautiful fashion illustration, Pattern 3566: Lady's Riding Coat & Pattern 2810: Lady's & Girl's Divided Riding Skirt were issued in Madame Weigel's Journal of Fashion in 1911 & 1905 respectively.
Causing quite a sensation, women could now 'ride astride' instead of the expected side saddle, although many held on to this tradition for years to come.
The subject of a letter to Weigel's Journal of Fashion, this riding skirt was almost a craze in parts of Victoria at the time.
(click image for detailed view)