After modeling together in Chris Christy’s fall and winter 2014 campaigns, Ahn Jae Hyun and Kim Won Joong are back again for the fashion label’s spring 2015 lookbook.

Save for a couple of suits, most of the pieces in the lookbook are transitional casual wear appropriate for the upcoming season, like lighter sweaters, blazers, and shirts. In each of the cuts, a single motif is interpreted into two distinct but coherent looks.

In the suits cut, both models sport monochromatic outfits but in different shades. In another cut, Ahn Jae Hyun and Kim Won Joong model two versions of head-to-toe denim. Kim Won Joong’s number, which features a cap and t-shirt, is much more casual than Ahn Jae Hyun’s look, which switches out the tee for a tie and collared button-down shirt.

The same goes for the other two cuts, which feature a camouflage knit and a black-and-white color scheme, respectively.