Just a couple of suppliers to get you started

Whitridge

Apparel and Camping gear   
whiteridgeinc.com/

 Apparel and Promotional Items
www.alphabroder.ca/cgi-bin/online/webshr/shr-index.w

Corporate and Casual wear, Outerwear, some accessories
www.technosport.com/sites/EN/WEnglish/Enterprise%20Portal/default.aspx?WCMP=TSC1

Stormtech Canada

 https://www.stormtechperformance.com/all-products/?&selectedRegionId=0

High quality fleece.
www.justlikehero.com/
 

Apparel and name brand items