A technical long-sleeve layer built for high-intensity training and outdoor runs. This top balances sustainability with high-performance features, using a breathable, four-way stretch fabric that moves with you while maintaining its shape. MATERIALS 89% Polyester, 11% Elastan SIZE & FIT Regular fit Size UK Chest(cm) Length(cm) Sleeve Length(cm) S 36 99 66.5 76.5 M 38 104 68.5 78 L 40 109 70.5 79.5 XL 42 116.5 72.5 81 XXL 44 124 74.5 82.5 Notes: Measurement Tolerance: Please note that the clothes size chart is only for reference. Please allow for a manual measurement margin of error of 2-3 cm, which is within the normal range. Fabric Stretch: Activewear measurements are typically taken with the garment laid flat; the fabric is designed to stretch and contour to the body. Note on Colour: Please be aware that actual product colours may appear slightly different in person due to photographic lighting sources or your specific monitor and screen settings.