This bag lets air out, which is good, but will it let water back in if fully submerged after having the air squeezed out of it?

Tech Specs:

Material:

70D Cordura 

Volume:

[XS] 720cu in (11.8L) ;[S] 854cu in (14L); [M] 1181cu in (19.4L); [L] 1750cu in (28.7L); [XL] 2332cu in (38.2L) 

Dimensions:

[XS] 5 x 7.25 x 20in (12.7 x 18.4 x 51cm); [S] 5.25 x 7.75 x 21in (13.3 x 19.7 x 53.3cm); [M] 6 x 8.75 x 22.5in (15.2 x 22.2 x 57.15cm); [L] 7 x 10 x 25in (17.8 x 25.4 x 63.5cm) ; [XL] 8 x 11 x 26.5 (20.3 x 27.9 x 67.3cm ) 

Weight:

1.9 oz average 

Recommended Use:

River trips 

Manufacturer Warranty:

Lifetime 

Country of Origin:

American Samoa