How much time will swim jammers cut off my mile time? I am trying to get under 30 minutes. Right now I am swimming in board shorts and can get around 31

I Swam 1 Mile a Day for 100 Days — Here's What Happened

How to Swim for 30 Minutes Without Getting Tired

Are jammers better than swim trunks? - Quora

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Are jammers better than swim trunks? - Quora

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How to Swim for 30 Minutes Without Getting Tired

How to Swim for 30 Minutes Without Getting Tired

I Swam Every Day For 30 Days. Here's What Happened