This rare vintage piece is from around the 1960s, judging by the details and design. 【Size/Color】 - L - Length (from collar): 73cm Shoulder width (from shoulder seam to seam): 46cm Width (measured at the armpits): 56cm Sleeve length (from shoulder seam): 66cm Sleeve length (from center of neck to cuff): 87cm I (165cm/53kg, slim build) could wear this with a good fit; the sleeves came down to just past my fingertips. Recommended for people up to ~175cm tall, depending on preference and how you wear it!!! The navy nylon material has a sheen, and the light blue piping, though a difficult color combination, blends well. #WhatBlueIsThis? ← Check out blue items!!! #WhatLightBlueIsThis? ← Check out light blue items!!! 【Condition】 Vintage nylon materials from this era are prone to damage, but this one shows none. Although it's a pajama, which typically gets dirty, it has little wear and is in good condition, even for those who aren't fond of old vintage items. 【Remarks】 This is a rare, old-style DIPLOMA pajama. Made of NYLON TRICOT (warp-knitted nylon), it has a sheen and a good feel against the skin, and it's quick-drying, which is typical of pajamas. It's soft and conforms to the body when worn. It looks good with denim for a casual look, but I recommend pairing it with track pants or slacks to emphasize the sheen and elegance. Conversely, a grunge look with everything else tattered (stealing this piece for the story) is also interesting. As shown in image ①, only the top button is small. I also have other vintage pajamas and items recommended for grunge outfits for sale! Search #WhatPJMIsThis? #WhatGRGIsThis? to see them. Please check them out! I'm still listing items from this era! Search #What80sIsThis? 〝 nirvana Kurt Cobain y2k Kunichi Nomura Masaki Suda Mohair sweater Jack Purcell Jantiques roku toro hooked vintage vintage 1940s 1960s 40s 50s 60s …〟