Details: 3.7 oz.; 65% polyester; 35% viscose; 30 singles; Athletic Heather is 52% polyester; 48% viscose; ; Marble colors are 3.5 oz.; 91% poly; 9% combed ringspun cotton; 40 singles ; Heather Navy & Stripe colors: 70% rayon; 30% polyester; Racerback with sheering at seam; Sideseamed; Merrowed bottom hem; easy; drapey fit; Tear away label; BELLA+CANVAS uses sustainable manufacturing processes with Blue Sign certified dyes; efficient dye houses that adhere to the state of California's EPA regulations around waste water treatment and usage; and cutting facilities in Los Angeles that run on partial solar power with comprehensive recycling programs for paper waste and fabric scraps.;