Kids Swim Trunks — NFL & College Teams, Youth S-XL
Yes — kids swim trunks come in NFL and college team designs, in youth sizes S, M, L and XL. Quick-dry team swimwear for pool days, beach trips and splash pads, so your young fan reps their team in the water all summer long.
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NFL, MLB, NHL, NBA, College Kids Swimwear
Kids Swim Trunk Sizes, Explained
Youth swim sizes track regular kids clothing sizes — when in doubt, match the size your child wears in shorts today.
| Size | Typical clothing size | Typical age | Fit note |
|---|---|---|---|
| Youth S | 8 | 7-8 years | The first true swim-trunk size |
| Youth M | 10-12 | 9-11 years | The most-gifted size |
| Youth L | 14-16 | 11-13 years | Longer board-short cuts appear here |
| Youth XL | 18-20 | 13-14 years | Top of youth — men’s S comes next |
- Between sizes? Size up. Swim trunks have drawstrings and elastic waists, so a size up stays on in the water and lasts a second summer.
- Quick-dry matters: look for lightweight polyester trunks that dry between swims — they pack better and chafe less than heavy cotton shorts.
- Sun check: many team trunks carry a UPF rating; pair them with sunscreen and a team tee for full-day pool sessions, and always supervise kids in the water.
Shop Kids Swim Trunks in Your Size
Kids team swim trunks in youth S, M, L and XL start with the college kids swimwear range at FansEdge and the site-wide kids swimwear search, which pulls every team’s trunks into one list. On the pro side, the NFL kids department at Fanatics is where the pro teams’ swim gear lives each spring and summer.
Interesting Facts: Summer Is a Season Too
Football fandom does not take summers off — training camp opens in July, and team swim trunks are the uniform of every pool, lake and beach in between. College teams run just as deep: our college baby pages start fans at the other end of the ladder, like the Ohio State baby onesies page. Buy swim gear early in the season when the full size run is stocked — youth M and L sell through first every year.
Keep Growing: More Kids Fan Gear
When summer ends, the same teams carry your fan into fall — the Football Creeper homepage maps every team by age and league, from baby onesies to youth jerseys.
Kids Swim Trunks FAQ
What size swim trunks should I buy if my child is between sizes? Size up. The drawstring and elastic waist keep a larger pair secure in the water, and kids grow into swim gear faster than any other clothing they own.
Are team swim trunks okay for swim lessons? For lessons, plain quick-dry trunks without heavy pockets work best; team trunks are perfect for open swim, pool parties and beach days. Check your pool’s rules for drawstrings and liners.
How do I wash swim trunks? Rinse in cold water after each swim to clear chlorine or salt, then machine wash cold and hang dry — heat shortens the life of elastic and fades team graphics.