Tracklist• Type A:
1. Hadashi de Summer
2. Boku Dake no Hikari (senbatsu C/W song)
3. Offshore Girl (Shiraishi Mai solo)
• Type B:
1. Hadashi de Summer
2. Boku dake no Hikari (senbatsu C/W song)
3. Inochi no Shinjitsu Musical「Ringo Uri to Kamemushi」(Ikuta Erika solo / Guest Performance: Sakamoto Kenji)
• Type C:
1. Hadashi de Summer
2. Boku Dake no Hikari (senbatsu C/W song)
3. Hakumai-sama (Matsumura Sayuri - Ito Karin - Sasaki Kotoko - Terada Ranze)
• Type D:
1. Hadashi de Summer
2. Boku Dake no hikari (senbatsu C/W song)
3. Secret Graffiti (Under song)
• Regular:
1. Hadashi de Summer
2. Boku Dake no Hikari (senbatsu C/W song)
3. Iku ate no nai Bokutachi (Ito Marika - Inoue Sayuri)
source
http://www.nogizaka46.com/news/2016/07/15thsg-1.php