I will be starting a new job in the summer, and it is quite a senior role within the department. I look quite young even though I'm in my mid thirties, but before this I was in 'training' for many years so it didn't bother me that much. The office culture isn't overly formal, so I don't want to wear full suits or anything. Does anyone have any tips for dressing to project authority and where is best to shop? Normally (well pre pandemic) I shopped at oasis, warehouse, Zara etc but now thinking if I should get pieces from more expensive places. I'm thinking of clothing that is more timeless in style and will last many years.