• Here are a few options
• all suitable for South American Spanish
• with slight variations in word choice: **Option 1 (Most common and natural):** "Alguna que otra motita diminuta
• pequeñas manchas leves en la parte inferior delantera y la espalda." * **motita diminuta:** tiny bobble (motita is a common word for a small fabric ball/fluff) * **manchas leves:** light marks/stains * **parte inferior delantera:** lower front * **la espalda:** the back (of the shirt) **Option 2 (Slightly more direct):** "Alguna que otra pelotilla pequeña
• marcas claras en la parte inferior delantera y trasera." * **pelotilla pequeña:** small bobble (pelotilla is also very common) * **marcas claras:** light marks * **parte inferior delantera:** lower front * **trasera:** back (of the shirt) **Option 3 (Using "tenues" for faint):** "Alguna que otra motita
• pequeñas marcas tenues en la parte inferior delantera y el reverso." * **marcas tenues:** faint marks * **el reverso:** the reverse/back (less common for clothing than "espalda" or "parte trasera
• " but understood) I would recommend **Option 1** as the most natural and widely understood in South American Spanish for describing these types of defects on a shirt.

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