Coordinate by color, fabric, and coverage. The navy-blue Forever 21 top in this collection pairs easily with solid or patterned bottoms in complementary tones. Look for a matching material blend, such as nylon with spandex for stretch, and select a bottom with appropriate coverage for your comfort. Since the listed item is a navy seamless crop top, aim to create a cohesive set by balancing color and texture across any matching swimwear pieces you plan to wear together.

Swimwear bottoms perform best with a blend that includes nylon and elastane or spandex for stretch and shape retention. A fabric that feels smooth against your skin enhances comfort during movement. For a navy-blue crop top in this listing, choose bottoms with similar stretch to ensure a seamless, comfortable fit across both sit-down and active movements at the beach or pool.

Pair navy with complementary shades like white, light blue, or coral for contrast, or go monochrome with darker blues for a sleek look. If you want a coordinated set, seek swimwear bottoms from the same collection or brand family that share the same shade range. This navy top provides a versatile base, making it easy to mix and match with various bottoms while keeping your style cohesive.

Choose a size that offers secure coverage without digging into the skin. For bottoms, options range from cheeky to full-coverage, depending on your comfort level and activity. Since the listing highlights a Forever 21 navy top rather than a specific bottom, aim to choose bottoms that complement your torso length and hip measurements while maintaining a balanced silhouette with the top.

Rinse after beach or pool exposure to remove chlorine and salt, then hand wash in cool water with a gentle detergent. Do not wring or tumble-dry; lay flat or hang to dry away from direct sun. Elastic fibers benefit from air drying and gentle handling to preserve fit and color. Store pieces flat or neatly folded to avoid creases that can affect the fabric’s stretch.

Forever 21 often offers coordinated swimwear lines, so you may find matching sets or complementary tops and bottoms in the same collection. If you love the navy top shown here, look for other Forever 21 swim items in similar navy tones or fabric blends to assemble a cohesive two-piece set that suits your preferred coverage and style.