How to shoot clothes indoors without a flash? Camera: canon 7D lens: EF S 15-85mm with studio.

Personally, if there is a photographic light, there is no need to hit the flash directly on the clothes. The flash that hits the clothes directly will make the color tone white. You can also use the flash reflection method to increase the brightness, that is, put the flash head on the ceiling or wall and reflect the light to the clothes.

Besides, I don't know what the focal length of your lens is. I suggest you take a telephoto lens to draw the clothes closer, compress the sense of space and highlight the main body.

I also think your parameters are not good. You can try large aperture, high shutter speed and aperture priority mode. This will reduce the depth of field and make the clothes clearer.

The main reason why your photo is so white is that the color of the clothes is dark, and the metering point of the camera is aimed at the clothes. Pay attention to setting metering mode. If there is a little metering, try to aim the metering point at a straw hat or ladder. If it is still too bright, try to aim the metering point at the light-colored clothes.

If you want warm colors, it is recommended to adjust the white balance or color temperature. Of course, it can also be achieved through post-adjustment of software.