United Way "Celebrating 100 Years" Tension Envelope Corporation teams up with United Way for the annual Day of Caring. This apparel illustration was created as an incentive for associates to donate a minimum of $1 per paycheck for the entire year.This design incorporates major landmarks located in the Greater Kansas City area. Iconic locations such as Kauffman Center, Arrowhead Stadium, and the Western Auto sign create a circular skyline united at the top by Tension Envelope Corporation signifying their role in the united Kansas City community.