![Jon Hamm Skips Underwear, Appears to Go Commando on Set: Photo 2988494 | Jon Hamm Pictures | Just Jared Jon Hamm Skips Underwear, Appears to Go Commando on Set: Photo 2988494 | Jon Hamm Pictures | Just Jared](https://cdn.justjared.com/wp-content/uploads/2013/11/hamm-under/jon-hamm-goes-commando-wears-no-underwear-on-mad-men-set-05.jpg)
Jon Hamm Skips Underwear, Appears to Go Commando on Set: Photo 2988494 | Jon Hamm Pictures | Just Jared
![Jon Hamm Opens Up About Those Well-Endowed Bulge Pics — "As Rumors Go, Not the Worst" - Life & Style Jon Hamm Opens Up About Those Well-Endowed Bulge Pics — "As Rumors Go, Not the Worst" - Life & Style](https://www.lifeandstylemag.com/wp-content/uploads/2016/11/jon-hamm-penis-pics.jpg?w=1180&quality=86&strip=all)
Jon Hamm Opens Up About Those Well-Endowed Bulge Pics — "As Rumors Go, Not the Worst" - Life & Style
![Full Sized Photo of jon hamm goes commando wears no underwear on mad men set 02 | Photo 2988491 | Just Jared Full Sized Photo of jon hamm goes commando wears no underwear on mad men set 02 | Photo 2988491 | Just Jared](https://cdn.justjared.com/wp-content/uploads/2013/11/hamm-under/jon-hamm-goes-commando-wears-no-underwear-on-mad-men-set-02.jpg)
Full Sized Photo of jon hamm goes commando wears no underwear on mad men set 02 | Photo 2988491 | Just Jared
![We thought the underwear was authentic! Jon Hamm appears to go commando in snug trousers on set of Mad Men | Daily Mail Online We thought the underwear was authentic! Jon Hamm appears to go commando in snug trousers on set of Mad Men | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/11/08/article-2491904-1943899500000578-263_634x846.jpg)
We thought the underwear was authentic! Jon Hamm appears to go commando in snug trousers on set of Mad Men | Daily Mail Online
![We thought the underwear was authentic! Jon Hamm appears to go commando in snug trousers on set of Mad Men | Daily Mail Online We thought the underwear was authentic! Jon Hamm appears to go commando in snug trousers on set of Mad Men | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2013/11/08/article-2491904-1943892B00000578-102_306x527.jpg)