South Korea is experiencing a shift in summer fashion trends as heatwaves and tropical nights become increasingly common. Traditionally, summer clothing focused on revealing styles, but consumers are now prioritizing protection from the sun and heat. Sales of long-sleeved shirts and linen clothing are rising as a result. This change indicates a growing awareness of the health risks associated with prolonged sun exposure during increasingly intense summers. Retailers are responding by stocking more heat-protective fabrics and designs. The trend suggests a move away from purely aesthetic considerations towards functionality and comfort in summer apparel. This shift reflects a broader adaptation to the impacts of climate change on daily life.