3M Synthetic Cast Stockinet is a fine-knit ribbed polyester tube used as the first layer applied directly against the skin under cast padding and casting material. Compatible with all casting tapes — plaster of Paris and synthetic. Suitable for unpadded application with synthetic semi-rigid materials. Reduces water retention compared to cotton. Smooth, skin-friendly feel. Five widths from 1" (fingers) to 6" (large limbs). 25-yard rolls. Latex-free. By Solventum (formerly 3M).