Puma low safety shoe S1 Beat WNS Low, women's model, size 37 The Motion Protect Women models are the perfect combination of cushioning, energy return and design. The upper is made of extremely breathable sandwich mesh. It has a BreathActive functional lining and Motion Impulse, which is heat-resistant up to 300 °C. The non-slip rubber sole contains an Impulse.Foam midsole in two different densities for excellent cushioning, stability and comfort. The shoe is ESD and metal-free. Fibreglass toe cap. EN ISO 20345:2011 S1 ESD HRO SRC.