I just received my K14 pair that I bought for ¥260, and I also managed to get a retail pair for comparison. With nearly a 5x price difference between the two, I thought I'd share some of the differences I found for anyone who's interested.

Pic 1  
The retail pair's laces are noticeably neater straight out of the box, giving it a cleaner overall appearance. There are also slight differences in the sheen and feel of the mesh and leather materials, although the differences aren't very obvious to the naked eye.

Pic 2  
The difference is more noticeable here. The sidewall of the retail outsole doesn't rise as high. I'm not sure whether this is due to better glue quality or a difference in manufacturing.

Pic 3  
Looking closely, you can see that the perforation work is a bit different, and the depth of the texture on the rubber sections also varies.

Pic 4  
There is almost no visible difference here. The main thing I noticed is a slight color variation on the outsole.

Pic 5  
Again, there are some minor color differences.

Pic 6  
The printing process on the insoles appears to be slightly different.

Pic 7  
The font used on the labels looks different as well.

Overall, many of these differences are quite subtle and would be difficult to notice without placing the two pairs side by side. For a pair that costs about one-fifth the price of retail, the K14 holds up surprisingly well in terms of appearance.The on-foot comfort is surprisingly close, with no major difference in feel. If you notice any details that I may have missed, feel free to point them out in the comments.

W2C: https://weidian.com/item.html?itemID=7773747344&spider\_token=998a

[REVIEW] New ASICS GEL-KAYANO 14 Rep(¥260) vs Retail Comparison