Lycra       
noun [ U ]  trademark uk/ˈlaɪ.krə/ us/ˈlaɪ.krə/
 莱卡(一种弹性纤维材料,尤用于制作高弹性服装)
a brand name for a type of material that stretches, used especially for making clothes that fit very tightly
  a Lycra swimsuit 莱卡游泳衣 
 Lycra leggings 莱卡紧身裤 
 These jeans have added Lycra for comfort and fit. 这些牛仔裤的布料中添加了莱卡,以增加舒适度和贴身感。