Mercian Evolution CKF85 Xtreme Bend Field Hockey Stick - Advanced Composite StickMercian Evolution CKF85 Xtreme Bend Hockey Stick Advanced Composite Stick The Mercian Evolution CKF85 is an 85% carbon model with high quality Toray carbon placed across a 10% fiberglass skeleton, providing excellent touch and feel. The 5% Kevlar increases durability, stiffness, and laminate bonding. The Mercian Xtreme bend combines popular features with new elements, including a thinned toe for 3D skills, flattened backhand zone for accuracy, 24. 5mm