I don't see how you could think there would be no confusion. Your Kickstarter page shows you offering t-shirts, polos, and hoodies; various types of garments. Holden Outerwear sells t-shirts and hoodies (though no polos); various types of garments as well.

I'd agree with your conclusion if you were a graphic design company or in any other unrelated industry, but the fact that you're selling garments using the name "Holden" and an existing mark holder sells garments using the name "Holden" seems pretty clear-cut to me.

A quick search yields these active trademarks [edit: hopefully these are permalinks]:

http://tsdr.uspto.gov/#caseNumber=85334319&caseType=SERI...

http://tsdr.uspto.gov/#caseNumber=78378687&caseType=SERI...

Here's the goods and services covered for the first (word) mark:

  IC 025. US 022 039. G & S: clothing, namely, jackets,
  sweaters, sweatshirts, pants, t-shirts, shirts, vests and
  outerwear, namely, snow pants, snow jackets, snow suits,
  insulated and thermal pants, jackets, and shirts;
  headgear, namely, hats, caps. FIRST USE: 20020000. FIRST
  USE IN COMMERCE: 20020000

The second is the mark in stylized form which is in cursive like yours is.