I’ve been using this that last couple months and it works perfectly. Rolls on like deodorant, wait 30-60 seconds and pull up socks. Sticks and never slides even when sweating heavily. Also easy clean up, wipes away with soap and water. Doesn’t stain or leave leftover after wash. I use wet wipe after I pull up the socks to remove any residue above the sock line and/or on my hands.
Highly recommended:
My silca aero socks don’t sag…
Love mine.
Hairspray works well on shaved legs!
Yes it can. Typically Mueller Pre Tape Spray is the best but even regular hair spray can work well
I’ve no knowledge on hairspray, what do I need to care about? 
Thanks. Unfortunately in Austria this appears hard to get, so I’m looking generally at alternatives.
Its the cheapest and best way to get aero socks to adhere to skin, in my experience.
Will give this a shot, socks ended up well below calves in 20min on trainer
Dare I ask why you need aero socks on the trainer?
Testing to see if they stay up. How frustrating would it be in a race to have your sock fall down and go into the crank
slightly off topic, but has anybody run in aero socks? ie, for duathlon or triathlon, is there an aero sock you could wear on the bike and then transition to running without having to change? something that would be comfortable up to 1/2 marathon distance?
Just came across this thread and thought I’d add my 2 cents…
I have several Rule 28 products and love them but I cannot get their aero socks to stay up. IMO, if you need sticky spray to keep socks up then the socks are a faulty product!
So I tried Fingers Crossed aero socks instead and they are excellent. I have no idea on which brand’s socks are faster but I’m not pro so I figure that doesn’t really matter. The Fingers Crossed socks stay up during crits, 3 hour road races and even in pouring rain on cold days. So, even if the Rule 28 ones are faster in theory, the Fingers Crossed ones are faster in practice… Since they don’t end up in a wrinkled bunch around my ankles! 
IIRC, when Jim @ ERO Sports did some testing on Silca aero socks, one athlete that did the testing was a high-level triathlete and they were using Silca aero socks in their events, for both the bike and run legs.
They are very comfortable socks and I could see running in them with no issue. They also go on like a regular pair of socks, so would be relatively easy to slide on in T1.
I am here to confess a crime and be absolved of my sins.
I have, three times now, gone into the women’s hair aisle of a pharmacist on the morning of / riding out to a race and secretly sprayed my legs / hands and rubbed onto my legs to fix my aero sock anxiety.
Bless me father for I did not buy the hairspray can, cos like, who wants to be stuck with a 500ml can of hair spray in their back pocket for a 180k road race?
Can only imagine how they must be on the look out for shifty looking blokes in skinsuits.
This works 100%
https://www.amazon.com/JOMI-COMPRESSION-Adhesive-Resistant-Washes/dp/B07HB6DP9L?tag=trainerroad-20
My partner wears Silca aero socks for her IM events, no issues whatsoever.
Silica stay up, my nopinz stay up also. Nopinz shoe covers don’t stay up
I’ve had excellent luck with a roll on product like that.
Joe