![49ers announce new red alternate throwback jerseys for 2021 to honor their 75th season in NFL - CBSSports.com 49ers announce new red alternate throwback jerseys for 2021 to honor their 75th season in NFL - CBSSports.com](https://sportshub.cbsistatic.com/i/r/2021/06/30/b0f4926c-10aa-440d-b174-4729e36ce672/thumbnail/1200x675/6730e6f124a51af2872a7349d260114b/49ersjerseys.jpg)
49ers announce new red alternate throwback jerseys for 2021 to honor their 75th season in NFL - CBSSports.com
![San Francisco 49ers on Twitter: "These jerseys are all that and a bag of chips. Throwback themed wallpapers for your cellular devices! #94Niners | #tbt https://t.co/PtVYf0PY4u" / Twitter San Francisco 49ers on Twitter: "These jerseys are all that and a bag of chips. Throwback themed wallpapers for your cellular devices! #94Niners | #tbt https://t.co/PtVYf0PY4u" / Twitter](https://pbs.twimg.com/media/EHrsO_vUUAEQrPM.jpg:large)
San Francisco 49ers on Twitter: "These jerseys are all that and a bag of chips. Throwback themed wallpapers for your cellular devices! #94Niners | #tbt https://t.co/PtVYf0PY4u" / Twitter
![ESPN Stats & Info on Twitter: "Nick Bosa now has an NFL-high 15.5 sacks this season. That ties his career-high, set last season. Bosa is the first 49ers player with multiple 15-sack ESPN Stats & Info on Twitter: "Nick Bosa now has an NFL-high 15.5 sacks this season. That ties his career-high, set last season. Bosa is the first 49ers player with multiple 15-sack](https://pbs.twimg.com/media/FkEZ0BtX0AA-XPh.jpg)