Black Heather Bi-Blend Interlock UO T-Shirt Product Code: Black Heather Bi-Blend w/ Interlock UO Tee $29.99 Size : Small Medium Large X-Large XX-Large Size ChartView Size Chart Quantity -+ Eligible for 29.99 points with The Duck Store Rewards. Learn more Add to Cart DetailsInterlocking UO design Throwback Printed application Crew neck Short sleeve 90% cotton, 10% polyester Machine wash Imported