Kidcore is a vibrant and playful aesthetic inspired by the bright, colorful, and whimsical elements of childhood. It draws heavily from the nostalgic imagery of the 1990s and early 2000s, featuring bold primary colors, cartoon characters, and motifs reminiscent of children's toys and media from that era. This aesthetic embraces a carefree and innocent vibe, often incorporating elements such as rainbow patterns, stickers, and playful accessories.

Kidcore fashion typically includes clothing adorned with bright patterns, playful prints, and nostalgic references like smiley faces, rainbows, and beloved childhood characters. Overalls, graphic t-shirts, colorful socks, and accessories like hair clips, backpacks, and chunky sneakers are common in kidcore outfits. The style encourages a mix-and-match approach, celebrating individuality and a sense of fun.