Gla domain variants of human Factor VII or human Factor VIIa, comprising 1-15 amino acid modifications relative to human Factor VII or human Factor VIIa, wherein a hydrophobic amino acid residue has been introduced by substitution in position 34, or having an amino acid substitution in position 36, or having amino acid substitutions in positions 10 and 32 and at least one further amino acid substitution in a position selected from 74, 77 and 116.