600 × 600
Source:https://www.webstaurantstore.com/g/35/genuine-grip-9550-men-s-black-slip-on-non-slip-dress-shoe
1000 × 1000
Source:https://www.nashvilleshoewarehouse.com/products/dockers-lawton-mens-slip-resistant-dress-loafer
1000 × 1000
Source:https://www.ebay.com/itm/164539358077
800 × 1000
Source:https://www.amedeoexclusive.com/products/premium-black-loafers-for-men-designer-slip-on-casual-dress-shoes-luxury-leather
480 × 414
Source:https://www.dillards.com/p/steve-madden-mens-velvet-lifted-slip-on-loafer/509180727
358 × 500
Source:https://www.tuxedosonline.com/globe-black-slip-on-shoe-6705-black.html/
350 × 350
Source:https://www.jcpenney.com/p/stacy-adams-blake-mens-leather-moc-toe-slip-on-dress-shoes/pp5002370232?pTmplType\u003dregular
2040 × 1760
Source:https://www.dillards.com/p/johnston--murphy-hayes-tassel-dress-loafers/502372556
1000 × 1000
Source:https://www.ebay.com/itm/152798498370
900 × 1364
Source:https://www.amazon.com/Mofri-Mens-Dress-Shoes-Loafers/dp/B0B5TB13R7