Looking for affordable summer basics that work for both school + practice room!

The weather is getting so hot that wearing my school uniform to the academy leaves me completely drenched in sweat. So I'm trying to pick up some summer basics to change into at the practice room! Are there any clothes that look chill enough for school or working on performance evaluations, but are also lightweight and comfortable for copying choreo at the studio? I'd appreciate any recommendations for budget-friendly items that won't stretch out even if I wash them every single day 🤍