The Calvin Klein Pro Stretch Boys Underwear are constructed of cotton stretch fabric for flexibility. Providing an athletic fit with moisture wicking technology. With the undoubtly imfamous signature red CoolMax Calvin Klein Signature waistband. Calvin Klein have converted this iconic line into one for boys too.

Calvin Klein Underwear is synonymous with quality. The fits and fabrications are developed to perfection to preserve the brand's standard of excellence.

The Undie Factory has one of the widest ranges of Calvin Klein Underwear available. We stock over 50 different products and keep several thousands of items in stock at any one time, feel free to browse our extensive range, and if you have any questions relating to our products feel free to contact us using our live chat function, email, or calling us on our customer service number at the top of the page where we will be more than happy to assist you