The girl group are seen wearing the £2.50 red and white socks in new pictures, ahead of the charity weekend later this month.
The 'Higher' singers - Mollie King, Una Healy, Rochelle Wiseman, Vanessa White and Frankie Sandford - are among the famous faces who have modelled the official gear, which also includes special limited-edition T-shirts.
"Me and the other girls aren't usually a fan of wearing socks, but we can't get enough of the official Sport Relief Socks from Sainsbury's," Sandford said. "They're perfect to wear for anything - from lounging round the house to training for the Sport Relief Mile from Friday 23 to Sunday 25 March."
The Union Jack-inspired socks are available from Sainsburys stores nationwide. Sport Relief takes place over the weekend of March 23 to March 25.
Watch a behind-the-scenes video of The Saturdays' photoshoot below:
> The Saturdays tease new single, music video
> John Bishop completes 290-mile Week of Hell triathlon for Sport Relief
