Try sitting before the occasion
Put on the full outfit and sit on an ordinary chair for a few minutes. Stand and inspect the waistband, elbows, lap and back. Creasing varies with fabric, cut and fibre blend. Judge your own piece rather than treating every linen garment as identical.
If a particular fold bothers you, first check whether excess fabric has gathered beneath a belt or inside a close waistband. A looser arrangement may change that area. Ordinary movement creases, however, cannot reliably be prevented by adding another accessory.
Choose neighbouring surfaces deliberately
A smooth tee with linen trousers creates a visible material change. Two linen pieces can produce a more continuous texture. Neither is inherently tidier. What matters is the effect you want for the occasion and whether you still enjoy it after a journey or meal.
A textured bag can echo the fabric surface, while a smooth one introduces more contrast. Choose the required shoes and bag capacity first. Surface is another point of comparison, not a reason to carry something inconvenient.
Do not infer care from the outfit
Washing, drying and ironing decisions belong to the label in the individual garment. Fibre proportions, lining and construction can differ. If you want to smooth the item, use the specified settings and check the instructions rather than assuming a generally high temperature for every linen piece.
For an occasion where you want very little visible creasing, another garment you already own may be the more predictable option. That can be easier than repeated adjustments while out. For an ordinary summer day, you can instead build the outfit around accepting small changes after sitting. Photograph it once in that worn state; the picture will be more useful for planning next time than a record of the freshly ironed outfit alone.
