promotional weight, heavy weight textile

[Mythril]

Описание состава рубашек. 100% хлопок или 50% хлопок / 50% полиэстер.

Контекст:
Typically a promotional weight will be more appealing due to the cost. For the polo shirts that are sold as souvenirs, heavyweight, 100% cotton, will definitely be the most appealing, since the purchaser will typically be of a high income level, who prefers high end garments.

Может, слово "вес" вообще не употреблять, а перефразировать и сделать "состав"?

[10-4]

heavyweight 100% cotton = плотный трикотаж из чистого хлопка