One Cap, Two Caps… But Never Three
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TL;DR
- Swimmers may wear up to two caps in a race — never more.
- Common setup: one latex cap under a silicone cap to keep goggles in place.
- Three caps or any extra headgear is not allowed in competition.
- Caps are part of official swimwear, just like your suit and goggles.
How It Works
USA Swimming rules are very specific about what counts as legal swimwear: suit, cap(s), and goggles. When it comes to caps, you’re allowed to wear one or two caps maximum — but not three.
Why would anyone double up on caps?
- Inner cap keeps long hair tucked down 🐢
- Outer cap holds everything tight and gives a smoother surface
- Some swimmers also put goggles between two caps to keep straps from slipping
But anything beyond two caps is against the rules.
Real-Life Example
At a big meet, a swimmer decides to layer three caps because one of them is a “lucky cap” they always wear. An official notices and politely tells them they’ll need to take one off before racing. No disqualification here — just a quick fix before stepping on the blocks.
Special Notes
- Decorative headbands, armbands, or bands on the cap? ❌ Not allowed.
- Meet-issued caps (like state championship caps) must still follow the two-cap limit.
- Goggles are fine — but no hats, ear coverings, or add-ons that could create an advantage.
Quick Tips
- Two caps = normal, especially for long hair or big meets.
- Stick with one cap for practice to save your silicone caps from wear and tear.
- If in doubt: cap, cap, goggles — done.
📖 Official reference: USA Swimming Rulebook 102.8
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