TW Kempton British Roll Neck Submariners Sweater Size:3XL I found that the tightest Color:Cadet Blue I found that the tightest adjustment is the stated size of the breeches Sponge Pad Collar back Neck (cm) Sleeve Underarm (cm) XXS 32 inch (42 euro 82cm) 69 cm 51 cm XS 34 inch (44 euro 86 cm) 70 cm 52 cm S 36 inch (46 euro 92 cm) 71 cm 53 cm M 40 inch (50 euro 102 cm) 76 cm 56 cm L 44 inch (54 euro 112 cm) 81 cm 59 cm XL 48 inch (58 euro 122 cm) 86 cm 62 cm 2XL 52 inch (62 euro 132 cm) 86 cm 62 cm 3XL 56 inch (66 euro 142 cm) 86 cm 62 cm 4XL 60 inch (70 euro 152 cm) 87 cm 63 cm The Submariner's sweater has been manufactured for many years for the British Royal Navy it is made to an original 70 year old specification