Polka dots are one of those prints that look better with a sleeve. The bare version can tip too playful, too summery, too much like you borrowed something from a child’s birthday party. A sleeve grounds the whole thing. It adds weight and intention and suddenly the print reads as deliberate rather than accidental. We love what a sleeve does for a polka dot dress specifically because the pattern is so graphic that it needs a little structure to feel finished. Bell sleeves make the print feel retro in the best way. A fitted long sleeve makes it feel almost austere, which is a genuinely interesting tension. Puff sleeves split the difference and manage to be both fun and put together. The dresses in this collection earn their extra layer. We picked them because the sleeve is doing real work, not just covering arms for the sake of it. A polka dot dress with the right sleeve stops being a novelty and becomes an outfit.