English: “A man’s implement” — I only have [the prohibition of] weapons; from where [do I know it applies] even to garments? The verse says “and he shall not wear.”
On the daf / in context: The Sages expand the prohibition from military gear to ordinary clothing of the opposite gender.
Type of Learning
Derash expanding the prohibition from weapons to garments.
What Is Learned
The prohibition covers not only weapons but also ordinary clothing of the opposite gender.