I think that link is out of date. They had just a few of these back in March 2016 if memory serves me correctly.
Aldi tend to do a week of Biker gear in the UK, at the start of the season, around Easter time. Anything unsold gets discounted heavily 3/4 weeks later, so I got myself some perfectly serviceable waterproof touring boots last time around, for £20. Not the most elegant, but OK for everyday/short runs & they save wear on my best Daytonas.