Justin Sullivan/Getty Images
That might be because that's what retailers are selling.
Bhasin points to recent data from WGSN. The trend-predicting firm found out the percentages of styles that are currently being sold at full-price at various retailers. The most stocked jeans are arguably the jeans that consumers demand the most.
The percentages are based on Bloomberg's graph. Bloomberg notes that the data adds up to more than 100% since some sections overlap.
Here's what WGSN (via Bloomberg) found:
11. Loose jeans (<1% are sold in stores)
10. Carrot jeans (approximately 1%)
9. Maternity jeans (approximately 4%)
8. Bootcut jeans (approximately 6%)
7. Boyfriend jeans (approximately 7%)
6. Straight cut jeans (approximately 8%)
5. "Other" styles (approximately 9%)