The All Blacks have named an experienced line-up for their Rugby World Cup blockbuster against South Africa on Saturday.

Beauden Barrett, a star at fly-half, will start at full-back for the two-time defending champions when they open their campaign against the Springboks in Yokohama in Pool B.

New Zealand head coach Steve Hansen talked up his team, including what he believes is a strong ability to have impact off the bench.

"Any combination of players in our squad could have justified their selection, but in the end we believe the 23 we have selected is the right group for this opposition," he said on Thursday.

"In today's rugby environment, you need to have the mindset that it's not just about who starts, it's also about what the players coming off the bench can provide. As an example, we have a great one-two punch with Dane [Coles] and Codie [Taylor] at hooker and Aaron [Smith] and TJ [Perenara] at half-back."

While 12 players are set for their Rugby World Cup debuts, the All Blacks' team includes a total of 1,061 Tests in experience.

Hansen has been happy with his team's preparation ahead of a tough opening game against the Springboks.

"Since transferring from our camp in Kashiwa to Tokyo we have moved into Test match mode this week and our focus has been building throughout the week," he said.

"We've had a very good week's training in the heat and rain here in Tokyo, the facilities have been excellent and our Japanese hosts have been outstanding."

Hansen added: "The challenge of playing one of our oldest and most respected foes in the opening Test of RWC2019 has us excited and energised by what lies ahead. Each time we play South Africa, it's a tight battle and a real arm wrestle.

"To perform at our very best, we'll have to play with real clarity, intent, energy and clear heads. Both teams will have their moments and it'll be our job to ensure we limit theirs and take full opportunity of ours."

New Zealand: Beauden Barrett, Sevu Reece, Anton Lienert-Brown, Ryan Crotty, George Bridge, Richie Mo'unga, Aaron Smith; Joe Moody, Dane Coles, Nepo Laulala, Samuel Whitelock, Scott Barrett, Ardie Savea, Sam Cane, Kieran Read.
Replacements: Codie Taylor, Ofa Tuungafasi, Angus Ta'avao, Patrick Tuipulotu, Shannon Frizell, TJ Perenara, Sonny Bill Williams, Ben Smith.