Sinead O’Brien is an Irish social media influencer and entrepreneur known for her strong presence in the lifestyle, fashion, and body confidence space. She has built a highly engaged online community by sharing content focused on self-confidence, personal style, and everyday life, often highlighting themes of body positivity and authenticity.

She is the founder of the shapewear and fashion brand Vacious, which she created with the aim of promoting inclusivity and helping people feel confident in their clothing regardless of shape or size. Through her business, she has positioned herself not only as a content creator but also as a founder in the Irish fashion and wellness industry.

Alongside her entrepreneurial work, Sinead shares glimpses of her personal life, including family moments and lifestyle updates, which has helped her connect with followers in a more relatable and down-to-earth way. Her content often blends fashion inspiration with real-life experiences, making her appeal both aspirational and approachable.

Over time, she has collaborated with various brands and expanded her influence within Ireland’s digital creator space, becoming known for her consistent messaging around confidence, empowerment, and embracing individuality.