Legacy by Pellon Bamboo Blend Batting wScrim a soft blend of 50 Bamboo50 Cotton. It is needle punched onto a very lightweight sheet of scrimpolypropylene. The scrim is lighter than most in the industry today, thus making hand quilting much easier, while adding strength for hand and machine workers alike. Strength has not been compromised in any way by using this ultralight scrim. The batting will not stretch and can be stitched up to 810 apart.