Extensis Tyvek® Lab Coats No Pockets Knee Length, Medium, White (251-TY211S-M) Case of 30Features: Elastic opening for tighter fit at wrist Frock extends to knee Frocks provide body length jacket design with front snap closures for easy donning and doffing Ideal for applications that do not require the full body coverage of a coverall Laydown collar Protection is built into the fabric itself, and there are no films or laminates to abrade or wear away Tyvek fabric offers an inherent barrier to particles down to 1 micron in size Tyvek