The deal will build on the opticians' existing association with Wan, following its sponsorship of his C4 show How To Look Good Naked.
It includes sponsorship on C4's 4OD catch-up service, a bespoke sponsor's microsite, and branding on the show's site at Channel4.com. Specsavers will produce the creative in-house.
The show, which starts tomorrow (26 June), looks at everything from designer style to high-street chic. Wan and Chung will also interview celebrities including Joan Collins, Mischa Barton and Geri Halliwell.
The sponsorship was bought by MEC Access, the specialist division of Mediaedge:cia.