'I've got my style now and I'm happy with it' Cwpwrdd Dillad is on Wednesday on S4C at 8.25pm.
And as we see in S4C's Cwpwrdd Dillad this week, his collection of clothes reflect the boy who went into the UK's most famous house and came out a man three months later.
He was an 18 year-old schoolboy from Blaenau Ffestiniog when he first came into the public eye.
His sincerity and innocence won the hearts of thousands of viewers and he kept his place in the house until the final night when he came second in the competition with 38.8% of the final vote.
As Nia Parry opens the doors of his wardrobe back home in Wales this week, we get a glimpse of a life which was completely transformed by fame and fortune.
"Before I went into the Big Brother house I never shopped in the big shops because I had hand-me-downs from my cousin David," he said.
"I loved it when his clothes got too small for him. "I wore one of his old bright orange shirts when I went for my first interview to try for a place in the house."
Before going into the house Glyn admits that he had no particular fashion style and felt like a fish out of water among his fellow housemates, who were all used to modelling the latest fashions and attending glamorous events in London clubs.
Within no time, Mikey Dalton, Glyn's friend in the house, took him under his wing and taught him to put rips in his jeans and how to 'wear' his clothes.
"I was a bit of a country bumpkin as far as style was concerned - I'd only been out on the town in Llanrwst!
"But within a fewweeks the rest of the housemates had influenced my style," he added.
Glynmatured into a man in front of the nation's eyes and his wardrobe grewas magazines across the country sent stylists to lend a helping hand when he stepped out of the house a deserving runner-up.
"I've got my style nowand I'm happy with it," says Glyn.