4.2 oz., 100% combed and ringspun cotton; 30 singles; Ash is 99/1 combed ringspun cotton/poly; Athletic Heather is 90/10 ; Dark Grey Heather is 52% combed and ringspun cotton, 48% polyester; Triblends - 3.8 oz., 50 poly, 25% combed ringspun cotton, 25% rayon, 40 singles; Neon colors are 3.6 oz., 52% combed ringspun cotton, 48% polyester, 40 singles; Heather Navy: 52% Airlume combed and ring-spun cotton, 48% polyester; Available in two-tone color options ; Unisex sizing; retail fit; sideseamed; 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.