PUMA | CELERITY KNIT PINK WNS Low Lady Safety Shoe S1 HRO | 642910SAFETY KNIT STEP IN KOMFORT! Yes, this is really a safety shoe. The shaft of the CELERITY KNIT PINK WNS LOW is made of SAFETY KNIT, a highly flexible and durable textile fabric which adapts perfectly to the foot and fits like a sock. TPU protection elements in the area of the front cap and the heel provide abrasion protection, especially during kneeling work. More running shoe technology can be found in the sole. The sole combination of ultra light