joanne's tends to have Kona labels on their solids- *like kona means solid* but they are not Kona Solids---they are made in China solid fabrics. if you purchase *real* kona solids they will be substantial- good medium weight, color fast fabrics- kona's are not thin- see through- low quality fabrics. moda also makes some nice solids but I generally choose the Kona's when the color I need is available. even the deepest colors are color fast- blacks/reds do not fade, or bleed seem almost permanent press- I've never had one that was 'wrinkly' . they are my first choice. I do on occasion pick up one of the Moda's ...they are ok too- but around here tend to be quite a bit more expensive.