FREE UK Delivery TODAY for orders over £50

Calvin Klein Boys Swimwear

Calvin Klein Boys Swimwear here at includes swim shorts and swim briefs, all crafted from stretchy, supersoft supportive material to keep your lads comfortable. You’ll also find a selection of kids’ Calvin Klein T-shirts multi packs and shorts, perfect for adding a touch of high fashion designer style to their casual wardrobes this season.

4 Items
Refine Selection
View 4 products ›
4 Items

Why should kids’ clothing be any less stylish than adults’? At UnderU we’ve hand picked some of the best and most popular designer brands for your kids’ wardrobes, including our latest range of Calvin Klein kids’ clothing and underwear. Browse branded clothing and essentials from this world-famous designer brand and introduce real luxury and style to your kids’ fashion collections.

Kids Calvin Klein Swimwear

Our latest collection of Calvin Klein kids’ swimwear is filled with fantastic options for a range of boys’ ages. Browse boys’ swim shorts and briefs, all branded with the iconic CK logo waistband and available in a range of great colours for your lad to choose from. All of our Calvin Klein kids’ swimwear is made using the finest quality supersoft and stretchy cotton blends to give all day support and superior comfort.

Also in our Kids’ Calvin Klein range is a great selection of CK clothing including T-shirts and shorts. Perfect for helping your young lads develop their own style tastes and identity, this collection features the most popular boys’ styles emblazoned with the iconic CK logo, ideal for topping up his casual wardrobe with designer quality and style.

Already topped up their CK styles? Don’t forget to check out our full kids’ clothing collection to find even more incredible designer brands to add to your kids’ wardrobes this season.