这种衬衫是用苎麻纤维制成的，非常透气舒适。

This shirt is made of ___ramie fiber, which is very breathable and comfortable.

这种夏季衬衫是用苎麻面料制成的，穿着凉爽舒适。

This summer shirt is made of ___ramie, which keeps you cool and comfortable.