Passepied Band Merchandise

[Isha]

I'm having a problem where google translate isn't working to translate a page. I'm trying to buy something on this website: 商品詳細ページ | パスピエオフィシャルショップ | すしTシャツ 其の三【海老】
And I know I have to click the red buttons but its getting difficult to decipher what to put in the fields so I need some help? I'm also trying to buy Frederic merchandise too. It's so hard!
Thanks,
Isha