Packing for Poland requires a "layer-centric" strategy due to the country's famously unpredictable continental climate. In the summer (June-August), lightweight fabrics like linen and cotton are ideal, but you should always carry a light waterproof jacket or "cag-in-a-bag" for frequent afternoon showers. In the winter (December-February), temperatures often drop well below freezing, requiring a heavy parka, thermal base layers, a wool hat, and insulated gloves. Proper footwear is the most important consideration; Poland's historic cities like Krakow and Gdansk have many cobblestone streets that require sturdy, comfortable walking shoes or sneakers. For evening dining or visiting the Philharmonic, the style is "smart casual"—Poles generally dress well, and while jeans are fine, pairing them with a nice sweater or blouse is preferred. If you plan to visit the Tatra Mountains, technical hiking gear is a must. Lastly, always keep a small umbrella or a hood handy, as the weather can shift from bright sunshine to a downpour within minutes.