Non-skid Shoe Covers, Blue, Case of 500, 250 Pairs (Better Elastic Open, Thicker Material) by CLK. $29.99. Heavier and Thicker Material, Economical and High Quality. 500 pieces/case (250 pairs). $0.113 per piece before shipping and tax. Stronger Anti Skid. Elastic Comfort Fit LATEX FREE. Non Skid Shoe Covers. Excellent Floor Traction, Protection and Comfort. One Time Use Only. Save 67%!