Once the preserve of golfers and off-duty dads, the quarter-zip has become the surprise star of 2026, newly adopted by the fashion set for its easy versatility and sporty sensibility. It strikes a neat balance between polish and practicality: zip it high for structure, wear it open for a more relaxed feel. Whether yours is a cosy fleece version for weekend walks or a luxe cashmere knit that feel smart, the quarter-zip has become the jumper of the moment – plus its perfect for these betwixt times, weather-wise. Here are the styles worth considering now.