Solutions Casualwear White Linen Blouse

A closet staple - A Beautiful White Linen Blouse - looks great worn both open or buttoned up. Some possible minor areas of wear or just part of the beauty of linen (see photos). One very small, light yellow area on the front between 2 buttons (see last 2 photos). I have tried to clean it and do believe that I cleaned some of it away as it has lightened but I seemed to have hit a standstill and am left with the slightest bit of yellow spot. Woman's Size Small