The NEW Puma Safety 644657 Airtwist Black/White features Urban Effect Triple Density sole. The sole is consisting of two-layered midsole of EVA and an EFFECT.FOAM for excellent cushioning providing up to 60% Active Energy Return and 47% less impact on bones and joints. This style has TPU ankle support element and is metal free. Water repellent suede leather upper with reflective elements 300°c heat resistant rubber outsole The sole features an integrated rotation point in the area of the metatarsus. This point is the most severely strained part while walking and by reinforcing it, friction and thus fatigue is greatly reduced. Slip resistant, oil resistant and non-marking EFFECT.FOAM midsole for excellent cushioning and energy return (70% above the standard) TPU ankle support element and protection in the heel area BreathActive functional lining Lightweight fibreglass toecap (200j impact protection) Puma Evercushion insole Metal Free TPU eyelet element for strengthening Certified to Australian Standards AS 2210.3:2019 Sizing: UK6 – 12 (Euro 39 – 47) Puma Airtwist Safety Shoe Black/White 644657