Shives Shives, other outlets of the flax plant A co-product with multiple outlets Shives are straw fragments recovered during the scutching. They represent about 50% of the entire plant. They have different types of outlets: Horse bedding Horticultural mulching Chipboards Raw material for heating LINABOX ® horse bedding LINABOX® is a natural bedding. LINABOX® is composed exclusively of flax shives, central and woody part of the flax stem. The LINABOX® bedding was developed by Terre de Lin.