This Sondico Core Baselayer is great for training sessions, thanks to mesh ventilation panels added to the underarms and a rubberized hem for a secure fit. . . Short sleeves . Crewneck collar . Rubberized trim to the hem . Mesh ventilation panels under the arms . Flatlock seams . Keep away from fire. Shell: 92% polyester, 8% elastane . Mesh: 82% polyester, 18% elastane. Machine washable. Imported. 2427391012357 32348400036 427391