Which is better for the office?

The LOFT. It is built as workwear, with a modest asymmetrical neckline, cap sleeves and a relaxed shift cut. The Old Navy's puff sleeves and flare read more casual.

Which is more flattering on the waist?

The Old Navy. Its fit-and-flare cut is fitted through the bodice and flares below the waist. The LOFT shift falls straight, though its ruching softens the stomach area.

Which fabric is better for summer?

The LOFT's cotton-modal knit is light and breathable with 5% spandex for stretch. Old Navy does not list fabric content, so check the tag before you commit.

Is the price difference worth it?

It is four cents at the lows: $19.99 for the Old Navy and $19.95 for the LOFT. Pick on fit and fabric, not price.

Which has more size options?

The Old Navy, which comes in regular, petite, plus and tall. LOFT does not state a size range beyond women's sizing.

Which is rated higher?

The Old Navy at 4.2 from 38 ratings, against 3.9 from 52 for the LOFT. Both samples are small.

Old Navy Fit & Flare Prairie Midi Dress vs LOFT Asymmetrical Ruched Midi Dress

Buy the Old Navy Fit & Flare if you want a defined waist, a V-neck and a choice of petite, tall or plus sizing. Buy the LOFT Asymmetrical Ruched if you want a soft cotton-modal knit that works for the office and hides the midsection. Prices are close: $19.99 for the Old Navy and $19.95 at its low for the LOFT, which has ranged up to $20.65 since October 30.

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