These appear to be high-quality black satin tabi socks with four hooks (white soles). One pair (photos 2-8) has the Fukusuke mark on the hooks, so they are definitely Fukusuke brand. The other pair (photos 9-15) has the characters "別製" (bespoke/special made) on the hooks, but the manufacturer is unknown. The fabric of the unknown manufacturer's pair is softer. Found during a house clean-out. Likely belonged to my father or grandfather (items are possibly over 50 years old). ● Size: 26cm ● Material: Cotton ● Condition: Used, with stains on the white soles (photos 5-8 & 12-15). I believe there are no stains or damage on the black part of the instep. Please forgive any oversight as I am a non-professional inspector. ● Other Notes: Please purchase with the understanding that these are used items that have been stored for a long time. There is a possibility of overlooked flaws during inspection. Please refrain from purchasing if you are looking for a perfect item. I am also selling other items related to Japanese clothing. Please search #sonoma着物. No smokers, no pets (also at my parents' house). Shipping (anonymous shipping) is at my expense. Will be packed compactly for shipping. Please note that it may be changed to Yu-Yu Mercari delivery (anonymous shipping). Please feel free to ask any questions. Thank you. - Color: Black and white - Material: Cotton - Design: Split-toe design - Style: Traditional Japanese footwear - Size: Men's size (26cm)