For autumn and spring conditions the Callaghan Long Sleeve Jersey is a great option to take the chill off on cool to cold days. Merino wool is comfortable, warm, and odour resistant, while the polyester exterior has fibres extending into the wool to wick moisture to the face for rapid evaporation. This makes it great as a mid-layer insulator on cold days or worn as an outer, paired with a light base layer, for perfect temperature regulation on cool days. 7mesh's keen eye for details can be seen through their use of micro stitching giving seams the lowest possible profile on a 4-way stretch fabric. Read more… This reduces bulk and weight and while maintaining the stretch characteristics of the fabric for maximum comfort and a sleek look on the bike. A key garment for any year-round cyclist this Callaghan Long Sleeve Jersey is going to provide you with comfort and warmth in spring/autumn, cosy insulation on winter days right through to chill protection on cool summer evenings. Layer up to suit any eventuality. .