The uniform is made or retailed by Louis Bernard.
Rank of Captain on sleeves, additional Fleet Air Arm patch to the left sleeve.
Queen's crown buttons. 
The size label is faint but you can just make out it is a size 42L.
 
I have taken also the following measurements as a guide for fit. Please ensure you account for any under garments and room to manoeuvre. 
 
Jacket
Armpit to armpit laid flat across the chest 21"
Waist laid flat 19"
Upper sleeve length taken from the seam of the shoulder to the cuff 26"
Armpit to cuff 18 1/2" 
Drop centre back taken from the seam at the base of the collar to the bottom hem 31"
Shoulder to shoulder taken from behind the epaulettes is approximately  18 1/2"
 
Trousers
Waist laid flat measures 17 1/2" 
Inside leg 31"
 
Condition: The jacket is in good condition, a few light marks. The trousers have a small hole on the front of the right leg.
Weight: 2.14 kg.