Excellent ventilation! This is a men's short-sleeved shirt (size S) with good breathability. I used it for running for about a month, but I'm selling it to declutter. ▼Features ・Black / Men's S size ・Very sheer (underwear recommended) ・Well-ventilated, perfect for summer! ▼Condition (defective) ・White discoloration on the shoulder area due to sun exposure ・Used item: worn for one month ※I, a women's size L, wore it ▼Shipping & Packaging ・Ships within a few hours if the timing is right ・Plastic bag + envelope, recycled packaging, folded compactly ▼Bulk purchase welcome! I'm also decluttering and selling other items. Details on bulk purchases are in my profile ◎