T-shirts are a little smaller than the usual fit. For your reference:

Our female model is 154cm/40kg and wears XS for a slightly oversize look.

Our male model is 180cm/70kg and wears XL for a slightly oversize look.

Hoodies/Long sleeves are a little bigger than the usual fit. For your reference:

Our female model is 154cm/40kg and wears XS for a slightly oversize look.

Our male model is 180cm/70kg and wears L for a fitted look, or XL for an oversize look.