... 100% TPU + ?% grinding grain +?% toughener + ?% softener5. Process: High-temperature treatment + released + shaped + packed in bag 6. Advance: Environment-friendly ... , sweatproof, long term usage, etc..7. Appearance: High elastic, very good touch, straight, natural stria, smooth ... transparent color)8. Workability: Easy to process, high elasticity and flexibility reduce the probability of rupture when ...