Tyvek® IsoClean® Sleeve, 18 in L, Elastic Bicep/Wrist Closures, One Size Fits Most, WhiteMade using a patented flash spinning process, Tyvek provides an inherent barrier to particles, microorganisms and non hazardous light liquid splash Bound seams are covered with garment fabric to reinforce the seam and to reduce the potential for particle penetration Elastic at both ends (bicep and wrist) for arm protection