Airtox sr5 safety sr5 safety is designed past, the laws developed in copenhagen in 2015, past, the laws carefully redesigned in 2019, where both appearance, comfort past, the laws durability is optimized. Model have saler with airtox air system 3.0, There gives uncompromising flexibility past, the laws comfort. Bodice is manufactured of cordura textile One textile material, there gives high breathability past, the laws increased air circulation in shoe. In combination with airtox power breeze - technology remains feet fresh throughout day in one couple sr5. Super features Air system 3.0 Saler Power breeze airflow system Freshtech footbeds properties past, the laws specifications Cordura breathable textile top Superlite neo-steel toecap Wide scandinavian fit Oil past, the laws aciduric outsole Heat resistant up to 150 c lining outsole Approval: one iso 20345 s1-p src esd Str.: 39-48