(CNN) With more and more people working from home, Walmart has picked up on an interesting trend: Tops have seen an increase in sales, while bottoms haven't.

That's what Walmart's executive vice president of corporate affairs Dan Bartlett told Yahoo Finance on Thursday. Later, a spokesman for the company told CNN the same thing.

As officials try to control the Covid-19 pandemic , millions of white collar workers — normally bound by dress codes and expectations in the office — are trading business trousers for sweat pants, and stiff blazers for that hoodie they would only ever allow their family, roommates or dog to see.

But there's that matter of video conferencing where you still want to present a presentable self to your colleagues. And so, many of us are donning business attire on top and casual clothing from the waist down.

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