I have placed these textures very carefully to get this simple trouser result.
I take it that this is a custom texture, you’ve created, and it’s not one that comes with the clothing product…
Did you use a template from the clothing to create the texture map ?
If yes,.. then it should fit.
if no, then the UV layout may be different. ..and it wont map correctly.
Posting a screen capture of your shader settings, including the diffuse channel with the texture map settings may help someone to help you.
It looks like it’s Tiled / repeating.