This Sondico Core Base Short Sleeves is ideal for training. It is manufactured with mesh ventilation panels under the arms and a rubberised trimmed hem to allow breathability and a comfortable fit. Powered by LYCRA® fibre for long-lasting comfort and freedom of movement. Features include a rubberised trim hem, mesh ventilation panels, crew neck collar, and Sondico branding. It has short sleeves and flat lock seams. Shell: 92% Polyester, 8% Lycra (M.Grey: 90% Polyester / 10% Lycra). Mesh: 82% polyester 18% elastane. Machine washable at 40 degrees. Keep away from fire and flame.