^ Sounds a bit pricey unless you got nifty graphics.
This past weekend I tried a parcel delivery service across the border at a UPS store that holds packages for Canadian customers for $5 a week. Super smooth and a bonus that the border crossing is really convenient for me, it's about 20 mins out of the way of my normal trip. I've added 5-6 more online retailers to my favourites than I had before now. Declared everything at the crossing and was waived through with no tax or duty to pay.
As an aside, I'm a massive fan of Shark helmets. I have three now and they are all awesome. Extremely light helmets and the shields are nice and thick.