Just don’t understand the socks. No need to screw with them. Plenty of comfortable-blister free-sockless shoe options available today.

nice choice for the video cover lol

Was it a requirement at Oceanside to wear a race belt on the bike? Looks like everyone had one on.

Maybe their shoe sponsors do no make a blister free shoe? Or like me the extra seconds is well worth the comfort.

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5 seconds of insurance.

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For running 13.1 miles in? I respectfully disagree, at least for my feet.

If only Frodeno had though of this... Just think how good he could be!

Might be just me. I go sockless for all distances including fulls. In some cases the wrong sock can create more issues.

Yes, it was in the Athlete Guide:

I ran with my usual shoes and my usual socks and still ended up with 2 blisters. Can't imagine running that long without socks, though.

Most decline that insurance on the bike and it’s not drastically different for the run.

it's pretty different

Can you explain the lack of difference? On the bike, you're feet are relatively stable. On the run, every steps causes an impact with the ground and potential friction between the shoe and the foot.

Please share your list of comfortable-blister free-sockless shoe options.

I have my own list but I'd like to try some of your suggestions.

Zoot TT 7.0
Zoot Ultra
Zoot Kiawe
ASICS Gel Noosa Tri 10
Nike Free 5.0
Mizuno Wave Ekiden 9
Under Armour Speedform Gemini
Brooks Pure Cadence 4
New Balance Fresh Foam Zante

I’m in the market for some as my old Zoots were great for that (although I would still
Wear socks for 70.3) but worn. What do you recommend?

Ok saw your list...any of those low or zero drop?

There’s still friction on the bike pedal downstroke similar to friction caused by your feet impacting the ground while running. To a lesser extent sure, but it’s friction nonetheless.

Zoot Kiawe. Easy to source and at a great price point.

It is way different than the run. There might be some friction but nothing close to running. I might be able to run without socks in a half but I have also gotten terrible blisters going sockless as well. The extra few seconds is well worth it to me.

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I'm with you I've always run sockless. Last year I did a 70.3 in a pair of kinvaras with no socks and had zero issues.

Besides I'm so slow and transition if I had to add socks I'd be there 10 minutes.

it's not like the run at all. one is no impact, the other is lots of impacts, more the farther the distance. every time one of those impacts happen it's an opportunity for your foot to slip inside your shoe just a little bit. this is where the blisters come from. socks provide a nice intermediate layer that prevents or greatly reduces the slipping, or moves the slipping to between the sock and the shoe instead of on your skin.

Only $20 at your local Walmart. $99 with the IM logo though.

When every second counts...

But if it is worth the 5 seconds of insurance, why not spend it in T1 instead of T2? Is there an aero penalty?

For a pro, it's way more important to get up the road and into a good group on the bike, rather than on the run.