adidas Kids - adidas Kids Performance Boxer Briefs Underwear 4-Pack (Big Kids). Color Black/Grey. On sale for $24.89. MSRP $26.00.. 3.8 out of 5 stars+1Brand Nameadidas KidsProduct Nameadidas Kids Performance Boxer Briefs Underwear 4-Pack (Big Kids)ColorBlack/GreyPrice$24.89MSRP: $26.00Rating4Rated 4 stars out of 5(10)