London brand TOAST’s organic side button jeans in black, size 4US, worn once.

From the website: Our Annie trousers feature deep patch pockets at the sides that nod to workwear pieces. Crafted from organic cotton denim with a touch of stretch to fit neatly at the waist with long-cropped legs. The horn used for these buttons is a by-product of food production and has been carefully sourced. Organic cotton denim with a touch of stretch. Topstitched carpenter pockets. Buttoned jet back pocket. Long-cropped legs. Side horn buttons.