"Women's On® Core 2-in-1 Crop: The On Core 2-in-1 Crop is a women's running crop top that combines the feel of a tank with built-in support, so you can skip the extra layer and head out the door with one less thing to think about. The 2-in-1 construction means the built-in support is integrated directly into the top, making it a practical choice for warm-weather training runs and high-effort workouts where you want to keep your kit simple without sacrificing coverage.The double-layer front panel adds coverage and support where it counts, while the soft fabric blend - 69% polyamide and 31% elastane in the main body, 90% polyamide and 10% elastane in the bottom band - feels smooth against the skin and moves with you. The low U-shaped back promotes airflow and keeps your shoulders free through every stride. Side panel storage gives you a spot to tuck away a key or card, so you're not left hunting for a pocket mid-run.Why Our Fit Experts Love It""I really like that this top handles support on its own - it's one of those pieces I can grab when I'm heading out for a morning run and not have to think twice about layering. The U-shaped back keeps things breezy, and the side storage is genuinely useful for a quick run where I just need my key."" - Sabrina, Road Runner Sports Fit Expert, San Diego, CAWho It's Best ForThe On Core 2-in-1 Crop is a strong pick for women who want a streamlined running top that handles light support without requiring a separate sports bra underneath. It works well for warm-weather runs, interval sessions, or any workout where breathability and a clean, minimal kit matter. If you prefer a crop-length fit with a low back for airflow and appreciate having a small storage option built in, this top is worth a close look. VIP Family members can take the Core 2-in-1 Crop for a 90-Day test drive with our Perfect Fit Guarantee."