The North Face - Dune Sky Tank. Color Reef Waters White Heather. Low Stock. On sale for $39.56. MSRP $55.00.. 4.3 out of 5 stars6 left in stock+2Brand NameThe North FaceProduct NameDune Sky TankGenderWomen'sColorReef Waters White HeatherPrice$39.56MSRP: $55.00Rating4Rated 4 stars out of 5(3)