Calvin Klein Underwear - Naturals Cotton Stretch Flex Lightly Lined Triangle. Color Mudstone. On sale for $28.50. MSRP $38.00.. 3.0 out of 5 starsBrand NameCalvin Klein UnderwearProduct NameNaturals Cotton Stretch Flex Lightly Lined TriangleGenderWomen'sColorMudstonePrice$28.50MSRP: $38.00Rating3Rated 3 stars out of 5(1)