She added: "I love this colour. Really lovely lightweight fabric [and] it’s a size 20.
"I tend to size down in their dresses because I actually think they’re pretty generous."
‘We can match our babies’ gush mums as they race to Sainsbury’s for summer dresses and adorable mini-me
Other fashion fans have also been racing to their nearest store in a bid to find the red-hot dress.
One gushed: "I’ve been looking for this style of dress for years! Lovely vibrant colour and good fit."
A second added: "Love the red dress, I’m going to buy that one."
"That red dress is fire", chimed in a third.
Someone else wrote: "Absolutely stunning. Brb off to Sainsbury's."
Meanwhile, a fifth echoed: "Going to Sainsbury’s asap."
While you're in store you should also check out the denim section because one fashion fan believes they've found their dream jeans.
And perhaps the best part of all? They cost just £20.
The high-street store's 'Mid Denim Wide Leg Jeans' are a super flattering yet comfy option and come in a stylish mid blue wash, which is ideal for teaming with graphic tees ready for spring.