Leather compounding is a process often involved in shoe manufacturing. Leather compounding not only requires good composite strength, but also requires the composite material to have good breathability, so that the shoes made can be more comfortable to wear. Compounds involving leather often use hot melt adhesives made of EVA or TPU, and hot melt adhesive films and hot melt adhesive retinas are often suitable, so they can be selected based on the specific needs of customers.