Main thing to note there's some faint markings from prior use

5" | Suggested Size: Medium Slim -  Label suggests a chest around 92cm

There is a name written on the inside label

2 Velcro Sleeve Pockets

Good for costume use or display

British Royal Navy Class II White Jumper Sailor's Top - X Large 182/116 Camping Main thing to note there'sAt a glance Polyester & Viscose Blend Material Zipper Closure Blue Ratings Collar Under Water Ratings Patch Able Rate Patch w 2 Chevrons Iconic Sailor's Top Design Solid White Body Colour w Navy Blue Details Pit to Pit: 24. 5" Suggested Size: X Large Slim Label suggests a chest around 116cm and a waist of 100cm Sleeve Length: 25" Regular Label suggests a height around 182cm Collar to Hem: 29" Vintage Militaria Issued 1979 1985 Genuine British Royal