The deal marks the third successive tour that adidas has acted as the official kit supplier for the Lions.
As part of the deal, adidas will ensure that the Lions' playing and training kit will embrace the latest technology.
Robin Money, head of sports marketing, adidas UK & Ireland says: "adidas is honoured to be selected for our 3rd consecutive Lions tour. Having been there in South Africa and Australia we understand how gruelling a tour can be and know what the kit needs to go through.
"The success of the World Cup means interest in this tour will be unprecedented. The Lions and the All Blacks are two of the biggest names in sport and adidas is proud to sponsor both."
adidas will also be the official sportswear supplier of the team and will produce a line of licensed apparel for fans to wear.
