The North Face - Borealis Sling. Color Crater Aqua/Blue Moss. On sale for $53.10. MSRP $59.00.. 4.5 out of 5 starsAdd to favorites. 0 people have favorited this+11Brand NameThe North FaceProduct NameBorealis SlingColorCrater Aqua/Blue MossPrice$53.10MSRP: $59.00Rating5Rated 5 stars out of 5(594)