Hi {{first_name}},
I'm raising a small angel round for [[your company]] and your experience in [[their area of expertise or industry]] is why I wanted you on the cap table specifically.
[[Your company]] is [[one sentence on what the business does]]. We're at [[early traction]] and raising [[amount]] from [[number]] angels to [[use of funds]].
Your operational expertise in [[their specific background]] would be as valuable as the capital. Would 20 minutes work?
[[Your name]], Founder at [[your company]]