BREATHABLE MATERIALS -82%Polyester + 18%Spandex. Boy compression brief underwear are made of lightweight breathable & comfortable materials, that can quickly wick moisture, release sweat and keep you cool and dry SOFT PROTECTIVE CUP - These briefs have a built-in cup pocket that will fit any size youth athletic cup. Besides providing great protection, this soft foam Protective Athletic Cup is also designed to be lined with a layer of soft foam and moisture-wicking fabric that keeps your parts both comfortable and cool and decreases the lightweight PROTECTION WITH COMFORTABLE - Four-way stretch fabrics with high-compression fit ensure great flexibility and will never restrict your movement. Stay cool and comfortable under pressure with the KOOPOW compression briefs WIDE ELASTIC WAISTBAND - High elastic wide waistband holds the athletic support shorts in place and for easy adjustment. The stretchy soft polyester construction ensures comfortable compression to promote circulation while remaining cool and comfy WIDE RANGE USEFUL – Specially designed to match the bodies of youth. With great comfortable fit and protection, these briefs are suitable for almost all the contact sports such as baseball, football, hockey, lacrosse, MMA, boxing, etc KOOPOW 2-Pack Youth Boys Compression Shorts With Soft Protective Athletic Cup, Cups Holder & Pocket, Kids Sports Baseball Boxer Briefs Athletic Underwear For Football Lacrosse,Black XS