REI Outlet cuts up to 75% off a selection of Black Diamond, Marmot, and Prana items. (The banner advertises up to 35% off, but we found larger discounts within.) Shipping adds $5.99, but orders of $50 or more qualify for free shipping. A couple of best bets:
REI Outlet offers the Marmot Men's Rocklin 1/2-Zip Jacket in Red or Green Mustard for $37.73. Opt for in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by $21. It's available in sizes S to XXL, although not in all size/color combinations.