Clothing while traveling

Ideal clothing while traveling.

Basic outfit

Jeans
Tshirt
Sneakers

You can also wear
Slacks
Tshirt
Leather boots

But usually this second outfit is not very comfortable

Lounging in the house

Sweatpants or shorts
Sweatshirt / hoodie or tshirt

If you are going to be working from home or spending most of the time inside the house, then, this outfit is useful to have.

However, when you are traveling, or in general, avoid spending too much time inside the house

Temperature matters

Pick an ideal outfit for a temperature, and go with that. Likely the thing people will see most is the insulating layer, that is the sweater you are wearing.

Colors

Black is classic and avrious shades of black go together better than most anything else.

However, some color is useful. Usually a sweater.