Up Russell Wilderness Explorer Girls Tanks Help Russell earn both his final merit badge and the Up Russell Wilderness Explorer Heather Royal Blue Racerback Tank Top! The lovable Russell is portrayed holding a "Wilderness Explorer" banner and balloons that are printed in a distressed vintage style on this cute blue Up tank top. 50% Polyester, 25% Cotton, 25% Rayon. Designed with raw-edge hems. Designed with raw-edge hems. Designed with raw-edge hems.