My Fashion Today My Fashion Today

It was so hot (today) that I wore a brown polo shirt and green shorts. It was so hot (today) that I wore a brown polo shirt and green shorts.

The shirt iwas a Tommy Hilfiger shirt. The shirt was a Tommy Hilfiger shirt.

You started the paragraph in the past tense (which is the most common way to discuss topics like this), so you should continue to use the same tense for the rest of the paragraph unless something happened at a different time. Thus, you should continue to use the past tense for this sentence and the next sentence since you are adding more detail to the clothes you were wearing at that time.

The shorts awere Club Monaco shorts. The shorts were Club Monaco shorts.

The shorts are Club Monaco shorts. The shorts are Club Monaco.

I kneow that Tommy Hilfiger and Club Monaco are American brands. I know that Tommy Hilfiger and Club Monaco are American brands.

We change tenses here because this is something you know in general, and isn't limited to a specific time frame.

I kneow that Tommy Hilfiger and Club Monaco are American brands. I know that Tommy Hilfiger and Club Monaco are American brands.

Moreover, I wore white Nike shoes. Moreover, I wore white Nike shoes.

This was correctly put into the past tense, since you are back to describing the clothes like in the earlier sentences.

To sum up, I wore only American brand clothes from tophead to toe today. To sum up, I wore only American brand clothes from head to toe today.

"head to toe" is the English idiom.