Vintage 1970’s Skate Sunburst Marathon Sneaker Disco Roller Derby

A great pair of vintage sneaker skate in used condition but very useable or perfect for your collection.
I am an ex 4 year veteran roller derby skater so have a little skate experience 😏
Size-8 But as I wear a men’s size 8 these feel loose and are more to a size 8.5-9.
So in my opinion these skates are useable, good condition. Now the top fabric on the insole is bunching up and needs some love or to simply pull that layer off and with a simple pair of insoles they would be very comfy. The outer Sued is soft and supple and is in good shape. The wheels spin freely on their bearings and the chassis and trucks look in great functioning condition.
The wheels look nice and original no chunking or damage. They are hard wheels but have some flex in them. No knowing the original hardness it’s hard to tell but they do not feel petrified and crumbly, they have maybe a little life in them but if I were to skate in these I would swap the wheels and save these for display only.
Please ask question and I’ll be happy to answer.