In summer during my time at Lucky, I would forever find myself raiding the fashion closet for a cardigan to warm me up in the face of the Conde Nast building’s extra-frosty A/C. And while I no longer have access to that magical thing that is a fashion closet, I do try to look out for the kind of cardi that isn’t too heavy, and will look good with dresses, which is most of what I wear this time of year. This short-sleeved option from Cos seems like a perfect solution. Its mesh fabrication keeps things light, and the shape is slightly shrunken—perfect for not overpowering your frock.