经典邮件概念。棕色信封，沟通概念。

XS

480x319px 6.7" x 4.4" @72dpi

38kB | jpg

S

800x532px 2.7" x 1.8" @300dpi

87kB | jpg

M

2123x1412px 7.1" x 4.7" @300dpi

486kB | jpg

L

2742x1823px 9.1" x 6.1" @300dpi

760kB | jpg

XL

3468x2306px 11.6" x 7.7" @300dpi

1.1MB | jpg

MAX

6000x3990px 20" x 13.3" @300dpi

2MB | jpg

TIFF

8485x5643px 28.3" x 18.8" @300dpi

137MB | tiff