Seamless camis and tanks are made from a variety of materials. Common options include cotton/modal blends (often with spandex), nylon/polyester blends with spandex, polyester/spandex mixes, linen/viscose blends, and pure silk.
Both options are available: some seamless camis are sold individually (quantity of 1), while others are offered in multi-packs, for example 3-packs.
Seamless camis are available in lightweight to midweight fabrications. Several options are labeled midweight, with at least one option identified as lightweight; some constructions are described as suitable for year-round wear.
Features that suit layering and workouts include moisture-wicking modal blends, breathable construction, longer lengths that cover the hips for layering, and stretchy, form-fitting cuts that move with the body.
Size offerings vary: some styles use standard XS–XL sizing, while others use combined groups like S/M, L/XL, and 2X/3X. Certain products also provide specific length-by-size measurements.
Back options that help hide bra straps or increase coverage include full-back (conservative) designs, plain/unlined backs, and single-layer constructions that offer opaque coverage.