It sounds like you're interested in a Hufflepuff House Tipped Polo Shirt, which could be a stylish way to show off your Hogwarts house pride! The shirt likely has the signature black and yellow color scheme of Hufflepuff, with perhaps a subtle "tipped" detail around the collar or sleeves, typically used in design to add a polished, sporty look.
Are you looking for one in particular, or are you curious about where to find these types of items? If you're a fan of Harry Potter merch, many online stores (like the Warner Bros. shop or other fan merchandise sites) often carry these kinds of house-themed apparel.
Size Guide: Small - 35" - 37" Inch Chest Medium - 38" - 40" Inch Chest Large - 41" - 43" Inch Chest XL - 44" - 46" Inch Chest 2XL - 47" - 49" Inch Chest 3XL - 50" Inch Chest