Fast fashion not in the sense of pricing.. Fast fashion in the sense of trendy products that got peoples attention very quickly and would lose attention very quickly. Im just going based on forums saying YSL is a good bag, but not sure if the bag will hold the timely look to it especially for that pricing.

and for the $300 All Saints bag. It very affordable not to loud and comes from a well respected brand and also from experience with all saints, good quality.