Up, up and away at London’s “One Extraordinary Day” on Sunday.

Up, up and away at London’s “One Extraordinary Day” on Sunday.

Tastemaker and frequent Sartorialist subject Yasmin Sewell listed her warm weather favorites in T’s Spring 2011 issue. Photograph by Tyrone Lebon.

Tastemaker and frequent Sartorialist subject Yasmin Sewell listed her warm weather favorites in T’s Spring 2011 issue. Photograph by Tyrone Lebon.