Castore Men's Seam Free Half Zip Funnel Neck Sweatshirt - Black - Available at M&S
This long-sleeved top from Castore is a workout essential. It's made to a regular fit from stretch fabric, with a seamless chafe-free design. A half-zip funnel neck provides adjustable comfort. Moisture wicking AerTek technology, plus knitted back panels, work to keep you cool.