A child support device including adjustable features is disclosed. The support device may be a high chair including an adjustable foot support and/or tray portion. The child support device may include a base, a frame attached to the base, and a seat attached to the frame. The seat may include a primary restraint such as a crotch post. The footrest may be telescopically connected to the primary restraint such that its position relative to the seat may be altered. The tray, moreover, may include a secondary restraint that cooperates with the primary restraint to provide an additional safety feature. The tray and the secondary restraint may be repositioned with respect to the primary restraint to accommodate children of various sizes.