Can I wear my SIM shorts in a triathlon race?

The SIM is considered by USAT and WTC rules to be the same as a wetsuit. You may wear the SIM in a race where wetsuits are permitted, but you may not wear it in a non-wetsuit race.  If you wear a SIM under a wetsuit in a wetsuit-legal race you will need to ensure that you comply with any thickness limitations under USAT or WTC rules.

Please make sure to check with your race director for further clarification. 

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