Linen and cotton are plant-derived fibres, but a fibre name alone cannot predict the finished garment. Linen begins with flax bast fibre. Cotton begins with the soft seed fibres of plants in the genus Gossypium. Each can be spun, woven, knitted and finished in many ways.
The precise comparison therefore begins with plant and process, then moves to the actual cloth.
Flax and cotton are different structures
Flax fibre is taken from the stem. Cotton fibre grows around the seed. Their different origins contribute to differences in length, surface and behaviour, but these tendencies are altered by spinning and manufacture.
Linen often shows visible slubs, a dry hand and a clear crease. Cotton may feel smoother or softer at first contact. Neither description applies to every cloth carrying the fibre name.
Weave and weight change the garment
A light open linen and a dense cotton canvas should not be compared as though fibre were the only variable. Yarn size, weave density, fabric weight, finishing and garment construction affect airflow, opacity, drape, abrasion and drying time.
Blends require their own reading. Linen mixed with cotton, viscose or another fibre is not pure linen with a footnote. The percentage composition and construction belong to the identity of the cloth.
Creasing is material information
Linen creases readily because flax fibre has limited elastic recovery. The crease is not evidence of poor quality. It is one visible consequence of the material structure. Pressing can produce a sharper surface, while wear produces a softer and more irregular line.
Cotton also creases, though the appearance varies considerably by weave and finish. Marketing language that treats cotton as permanently smooth or linen as automatically superior is too broad to be useful.
Reading a TI YA RA piece
Begin with the exact composition on the product record and sewn label. Then examine weight, weave, lining, cut and care. A garment is selected for the relationship among these facts, not because one fibre wins an abstract contest.
For tropical wear, openness of construction and garment proportion matter alongside fibre. The responsible statement remains specific: this cloth, in this weight and cut, used in this piece.