does have several areas that are a bit grubby / faded from prior use

For features you'll find the usual slanted waist pocket on either leg

These seem to have been varied across different decades and it is unusual to see it without the patches above

Unfortunately one button is missing off the sleeve cuff

80L+ Carry Capacity

British Army / Tri-Services Navy Blue PTI Tracksuit Top Jacket - Large Footwear does have several areas thatAt a glance Polyester & Cotton Blend Material 2 Zipper Waist Pockets & 1 Zipper Chest Pocket Zipper Front Closure Heavy Duty & Hard Wearing RAF Sergeant Rank Patch Parachutist's Wings Patch RAF PTI Physical Training Instructor Patch Air Wings Patch Elasticated Cuffs Funnel Neck Collar Solid Navy Blue Colour Pit to Pit: 25. 5" Suggested Size: Large Regular Sleeve Length: 24. 5" Regular Collar to Hem: 27. 5" Modern Militaria Issued 2000's Onwards