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Light blue shorts with a BL101 logo on a white background
  • Light blue shorts with a BL101 logo on a white background
  • Light blue shorts with a pocket on a white background
  • Light blue shorts with a BL101 logo on a white background
  • Young boy on the beach wearing light blue BL101 youth swim trunks and a white Rain Delay tee, holding a beach ball while wearing yellow mirrored shield sunglasses.
  • Close-up of light blue BL101 youth swim trunks with blue and white BL101 home plate logo, worn at the beach.
  • Youth model holding a beach ball showing the elastic drawstring waistband and BL101 logo on light blue youth swim trunks.
  • Back view of a young boy in light blue BL101 youth swim trunks and white Rain Delay graphic tee, standing at the water's edge holding a beach ball.
  • Light blue shorts with a BL101 logo on a white background
  • Light blue shorts with a pocket on a white background
  • Light blue shorts with a BL101 logo on a white background
  • Young boy on the beach wearing light blue BL101 youth swim trunks and a white Rain Delay tee, holding a beach ball while wearing yellow mirrored shield sunglasses.
  • Close-up of light blue BL101 youth swim trunks with blue and white BL101 home plate logo, worn at the beach.
  • Youth model holding a beach ball showing the elastic drawstring waistband and BL101 logo on light blue youth swim trunks.
  • Back view of a young boy in light blue BL101 youth swim trunks and white Rain Delay graphic tee, standing at the water's edge holding a beach ball.
Baseline Youth Swim Trunks - Blue

Baseline Youth Swim Trunks - Blue

5.0
Rated 5.0 out of 5 stars
33 Reviews
$49.99
Size
Color
SOLD OUT - Notify me when available
Product Description

Bring the energy of the diamond to the water with these high-performance swim trunks. Designed for the athlete who never stops, these board shorts blend baseball culture with premium beachside style. Whether you’re diving into the pool or hanging out by the shore, the vibrant blue aesthetic and lightweight design ensure you look as good as you feel. Durable enough for any summer adventure and soft enough for all-day wear, these are your new go-to for making waves.

  • 100% Polyester Outershell
  • 88% Polyester / 12% Spandex Interior Lining
  • Comfortable Elastic Waistband
  • Adjustable Drawstring for a Custom Fit
  • Quick-Dry Premium Fabric
  • Supportive Interior Lining
  • Built for Durability and Style
  • Please note all YXXS & YXS size swimsuits will have a brief liner instead of a full length liner
Sizing & Care

SIZING AND FIT FOR SWIM TRUNKS COLLECTION YOUTH TRUNKS

SIZING: TRUE TO SIZE

CARE: MACHINE WASH COLD & AIR DRY

SIZE (IN) YXXS YXS YS YM YL YXL
Waist Relaxed 9.25 10 11.25 12 13 14
Hip Width 14.5 15.5 17.5 18.5 19.5 20.5
Inseam 3 3 5 5 5 5
Front Rise Including Waistband 7.5 8 9 9.5 10 10.5
Back Rise Including Waistband 9.5 10 11 11.5 12 12.5
Leg Opening 8.25 8.75 10 10.5 11 11.5
Shipping & Returns
Shipping Policy:

We offer standard and expedited shipping options. Orders typically ship within 3-5 business days, with delivery times varying based on your location. You'll receive a tracking number once your order ships. Please note that shipping times are estimates and are not guaranteed.

If your product came in a box, such as an arm sleeve or a water bottle, you must return it in its original packaging in order to receive a refund.
Return Policy:

We accept returns within 30 days of purchase for unworn and unwashed items with original tags. To initiate a return, please visit our portal. Shipping fees for returns are the responsibility of the customer unless the item is defective or incorrect. If you received an incorrect or defective item, please reach out to info@bl101.com for assistance.

* Shipping and return policy is subject to change around holidays and other events.

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5.0
Rated 5.0 out of 5 stars
Based on 33 reviews
Total 5 star reviews: 33
Total 4 star reviews: 0
Total 3 star reviews: 0
Total 2 star reviews: 0
Total 1 star reviews: 0
Slide 1 selected
Reviews Summary
Customers say these swim shorts are incredibly comfortable with a built-in liner that feels like regular shorts. The fit is praised as perfect, though some note they run slightly large—sizing true to size is recommended. The quality is consistently highlighted as excellent, with the fabric holding up well through frequent pool use and washing. Customers appreciate the adjustable waist and vibrant colors, making these a favorite choice that many say their children refuse to wear anything else.
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33 reviews
  • BH
    Brandy H.
    Verified Buyer
    Reviewing
    Baseline Youth Swim Trunks - Black
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Youth Swim

    Do not order up in size if you are in between or you will regret it.

    Was this helpful?
  • DL
    Denise L.
    Verified Buyer
    Reviewing
    Baseline Youth Swim Trunks - Orange
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Wears nothing else

    Swim trunks

    Was this helpful?
  • YP
    Yovani P.
    Verified Buyer
    Reviewing
    Baseline Youth Swim Trunks - Blue
    I recommend this product
    Rated 5 out of 5 stars
    22 hours ago
    Love

    Great quality bathing suit with liner.

    Was this helpful?
  • C
    Corinne
    Verified Buyer
    Reviewing
    Baseline Youth Swim Trunks - Black
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    Great

    My kid loves BL101 and these fit great. Love the tight liner. Excellent quality.

    Was this helpful?
  • NO
    Nicole O.
    Verified Buyer
    Reviewing
    Baseline Youth Swim Trunks - Black
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Bathing suit

    My son absolutely loves. The liner makes it super comfortable.

    Was this helpful?