この生地は

this fabric

→ 此の
phrase Rare #31,516
this fabric この生地 means “this fabric” or “this material,” and は marks it as the topic of the sentence. 生地 can also mean dough or batter depending on context.
JA: この生地は夏にぴったりです。
EN: This fabric is perfect for summer.

この生地は引っ張るとすぐ伸びる

This fabric stretches easily when pulled.

この生地は長持ちする

This fabric is durable.

この生地はドレス向きじゃないよ

This fabric isn't suitable for a dress.

この生地は洋服をつくるには向かない

This fabric isn't suitable for making clothes.