These are three very different sports it is hard for the body and feet to adapt to all three activities in one go to prevent blisters and other injuries?
The swim is first is usually done in a wetsuit , which is necessary but can also cause irritation and blisters, I would suggest 2 toms SportShield on those areas, which is an amazing product giving 100% 24 hour waterproof protection with one application, always just apply to the area that is giving you problems. Do not apply to the whole of the foot or broken skin
Swimming- cycling- running transitions, have to be done in the quickest time possible otherwise time can be lost, which can cause problem with the feet as I lack of preparation at this point can cause blisters later on in the run stage.
Socks or no socks for triathletes
Socks or no Socks? Well some athletes wear them and some don’t, that’s ok, either way, if your feet are conditioned by training beforehand but a little extra time in transition preparing your feet for the next stage can pay dividends in the last stage of the event. Moisture wicking Socks will naturally be the better choice to keep the feet blister free but the seconds will be ticking away in your head! Socks are difficult to put on wet feet, keep a towel at the transition stage before the socks go on, which will help keep the feet as dry as possible . For those who don’t wear socks and get blisters, use Engo patches on the hotspot areas of the cycling shoes and running shoes, so the friction has been reduced on those contact areas before the race starts. Use 2toms sports shield applied only on those areas that are prone to blistering as used liberally all over the foot could cause a loss of traction in the run stage
Blister prevention taping – KT Pro tape is 100% waterproof, synthetic tape, this would be my only recommendation in tapes and must be applied an hour before the swim, the skin can be prepared beforehand with alcohol wipes and an application of Skin Tac to improve the staying power of the tape.