Carrie Underwood is not a fan of skimpy bikinis.

The country star, who has created her own line of swimsuits for her CALIA athleisure line, has refused to wear string bikinis since she was a teenager.

'I feel like with swimwear, growing up in my teenage years, early 20s, I couldn't wear a triangle swimsuit,' the 36-year-old told People during the launch of her collection in the Hamptons on Tuesday.

'Can't do it': Carrie Underwood, who is launching her own line of swimwear, has revealed she has and never would never wear a triangle bikini

To this day, Carrie said she would 'never' wear a triangle bikini.

'I can't do it, it's not going to happen. It would never have happened.' she insisted.

Carrie explained that she much prefers sporty cuts in her swimwear and that a trial and error approach over the years has helped her create a range of 'pretty and functional looks'.

The singer says she wants to help give women confidence when wearing swimsuits and avoid the common wardrobe malfunctions that can happen with bathing attire.

The singer, pictured Tuesday, says she wants to help give women confidence when wearing swimsuits and avoid the common wardrobe malfunctions that can happen with bathing attire

The 36-year-old celebrated the launch of her swimwear line - available at Dick's Sporting Goods - at an event in the Hamptons

'I've had women come up to me and be like, "Thank you! I can take my teenage daughter and we can get things that are cute but also appropriate for her and for me",

'And I think of myself running after my crazy kids and being at hotel pools, wanting to be cute but also not wanting to worry about things,

'Everything stays where it's supposed to!' she added of her stylish line which is available at Dick's Sporting Goods.

Carrie admits that she's not really a water baby and prefers to be 'by or on the water' while her eldest son Isaiah is a 'fish' who loves being in the water.

'But it's nice watching him, maybe having a glass of wine by the pool.'

Meanwhile, the singer celebrated her ninth wedding anniversary with husband Mike Fisher last week.

'We didn't do much,' Carrie said of her low-key ninth anniversary with husband Mike Fisher last week

The couple got someone to watch their sons Isaiah and Jacob, five months, while they snuck away to celebrate.

'We didn't do much,' she says. 'We had gotten horses recently and I hadn't gotten to really get to know them because my life has been nutso. So we took the horses out and I got to ride for the first time.'

After spending some time with their horses the couple enjoyed a meal together.

'There's this cute little restaurant that's literally 5 minutes away from our house and that's really where we go the most,

'Call somebody to come watch the kids and sneak away and we're back in like an hour and a half,' Carrie said. The anniversary was good.'