NFL allows teams to wear throwback jerseys for three games in 2018, per report - Acme Packing Company
Cowboys won't wear Thanksgiving throwback jerseys due to new NFL rule
NFL approves alternate helmets beginning in 2022
Throwback look in NFL could be more common in 2021 with possible helmet rule change - ESPN
CeeDee Lamb Dallas Cowboys NFL jersey: How to buy one online right now
Cowboys Alternate Uniforms Could Return in 2022 with New NFL Helmet Rule ✭ Inside The Star
Uniforms that should return in 2022 as NFL approves alternate helmets – The Swing of Things