Summer is almost over so it's time to start zipping up for the chilly weather ahead. SISTAR and Seo In Guk are showing you how it's done as they get ready to take on the weather and some outdoor activity for the brand 'ISENBERG'!

SISTAR and Seo In Guk weren't actually climbing in the snow, but looked like they could if given the chance with their charisma and athleticism. To keep warm, they zipped up in colorful down jackets to take on 'the challenge' concept of the pictorial.

The brand's marketing rep commented, "Through their broadcast activities, Seo In Guk and SISTAR show their energy and effectively express the concept of 'ISENBERG's challenge."