Men in Northern Ireland wear the same pair of underwear for the longest in the UK - with some believing three days is an acceptable amount of time.
The slightly stomach-churning stats show 6% of men in Northern Ireland go three days without changing their undies.
Meanwhile the average man in the UK holds onto his smalls for a staggering seven years.
The eye-opening stats come from a Littlewoods.com survey.
And it's mammies who some younger men still rely on to ensure their underwear 'drawers' are fully stocked.
One in 10 men aged between 25 to 34 still leave it up to mum.