Thermoplastic urethanes, abbreviated as TPU,is a newly environment-protection material without any poison or harm to the skin,and is widely used in the field of aviation,navigation and medical appliance.All the TPU used in JingXin is imported from Germany, with high quality:good elasticity and anti-cold character, it can keep well even under negative 40 centigrade.Meanwhile,this material has passed ISO9001 international quality certification.By way of heating and cooling, TPU can be molded to a lot of ornaments such as aiguillette,flying strap which can not only beatifies you but also be decomposed naturally under the earth without any environment pollution.