From the manufacturer

Boys’ Swim Bottoms & Rash Guards

Made with chlorine-resistant materials, Speedo swimwear is five times more durable than traditional spandex fabrics. Whether your little guy swims competitively, for recreation, or plays a water sport, take advantage of Speedo’s heritage of excellent swimwear technology for all their aquatic needs.

For All Ages & Sizes

Begin to Swim: Sizes 12M – 3T

Comfortable fits and cute looks for baby’s first splashes in the water.

Little Boys: Sizes 4 – 6

Colorful patterns and classic styles perfect for all-day play.

Big Boys: Sizes 7 – 16

Durable designs made to keep up with all his adventures.

Youth Competitive: Sizes 22–28

Practice, race-day or play, your young athlete will be ready to make waves.

Fabric Technology

Chlorine Resistant

Chlorine resistant for superior color retention.

Pilling Resistant

Fabric resists pilling for increased wear.

Block the Burn

All-over protection blocks the sun’s harmful rays.

Drawstring Waist

Securely adjusts to fit you.

Styles Available

Shop by Style

Competitive Brief

Competitive Square Leg

Competitive Jammer

Swim Trunk

Short-Sleeve Rash Guard

Long-Sleeve Rash Guard

Speedo’s iconic style made just for your young athlete. Drawcord waist ties keeps it secure and innovative fabrics offer durability swim after swim.

Get the same performance from our competitive brief, with a little more coverage.

Engineered from a highly chlorine-resistant fabric for durability, our jammers also protect him from the harsh sun thanks to Block the Burn UV50+ fabric.

Everything you need for more fun in the sun: quick drying fabric with Block the Burn UV50+ sun protection, and a built-in mesh for comfort and support.

Made with quick drying fabric enhanced with Block the Burn UPF50+ sun protection, this short-sleeve option has your back during long days out on the water.

A long-sleeve version of our regular swim shirt—but with the same Block the Burn UPF50+ sun protection and quick dry fabric.

More from Speedo

Compare Bottoms & Rash Guards

Competitive Brief

$40.96$40.96

Competitive Square Leg

4-12 Little & Big Boys ✔ ✔ ✔ See Details 4.5 out of 5 stars 137

Competitive Jammer

22 - 28 Youth Competitive ✔ ✔ ✔

Add to Cart

4.4 out of 5 stars 1,392

$35.70$35.70

Redondo Swim Trunk

XX-Small - X-Large Little & Big Boys ✔ ✔ ✔ See Details 4.5 out of 5 stars 93

Blocked Volley Swim Trunk

XX-Small - X-Large Little & Big Boys ✔ ✔ ✔ See Details 4.5 out of 5 stars 75

Short Sleeve Rashguard

X-Small - X-Large Big Boys ✔ ✔ ✔ See Details 4.6 out of 5 stars 137

Long Sleeve Rashguard

X-Small - X-Large Big Boys ✔ ✔ ✔ See Details 4.3 out of 5 stars 126