From the details and design, it's likely from around the 1970s. 【Size/Color】 Waist (measured flat at the top button x 2): 80cm Rise (from inseam to shoulder strap): 70cm Inseam (measured along the seam): 72cm Thigh width (at the thigh joint): 29cm Leg opening (measured at the hem): 21cm Total length (straight from shoulder strap to hem): 138cm Measurements taken in the condition shown in the images. I (165cm/53kg, slender build) could wear it with a good look. The hem was just right. Depending on preference and how you wear it, it's recommended for slender people around ~165cm tall!!! Faded, rare black duck fabric with gold buttons and green tape is effective. #WhatBlackIsIt? ← Check out black items!!! #WhatGoldIsIt? ← Check out gold items!!! #WhatGreenIsIt? ← Check out green items!!! 【Condition】 While there is fading from use and sun exposure, there are no particular damages or stains, and the fabric is still sturdy, so you can still enjoy it! The crotch area is fine, and there is no fraying at the hem. 【Remarks】 Rare duck fabric overalls. Unique items are often from minor brands, but the fact that it's from the popular, established brand KEY is also a key point. The color scheme is wonderful, and although it's not visible, the black lacquer buttons are also cool! A rare, small size that adults can wear, which is also rare ◎ The compact size gives it an atmosphere like items from Fumika Uchida or ARTS&SCIENCE. If you're pairing it with those items, this size is more interesting than a larger size. The combination with a large blue coverall as shown in the image is exquisite. I'm also listing other all-in-ones! Search for #WhatAIOIsIt? to see them, so please check them out. I'm still listing items from this era! Search for #What70sIsIt? "Jumpsuit Carhartt dickies sears Penney's pilgrim big mac supreme noah fumika uchida Jantiques vintage..."