The Heritage Shoe that Started It All. This is the Authentic-Since 1966. The Color Theory Collection allows you to create a unique color story by pairing vibrant, unexpected hues with our iconic footwear styles. Made with an old school canvas upper, the Color Theory Authentic honors our original Vans silhouette while offering a fresh look that boosts the appeal of this timeless shoe. Size Guide: US4 = 35 EUR US5 = 36.5 EUR US6 = 38 EUR US7 = 39 EUR US7.5 = 40 EUR US8.5= 41 EUR US9 = 42 EUR US10 = 43 EUR US11 = 44.5 EUR US12 = 46 EUR