"Nike® Slim Waistpack 4.0: The Nike® Slim Waistpack 4.0 is a lightweight waist pack built for runners who want to carry essentials without added bulk during daily training or road running. It expands just enough to hold keys, cards, and small items, keeping the load minimal so it stays out of the way through each mile. This unisex pack sits close to your body, which means it remains secure and comfortable rather than shifting during movement, so you can focus on the run instead of adjusting your gear.The slim profile keeps the pack from interfering with your natural stride, and the secure fit means your contents stay stable without requiring mid-run adjustments. Reflective details add visibility in low-light conditions, a practical feature for early morning or evening runs. Because it's sized for essentials only, it differentiates itself from bulkier storage options and makes it a practical companion for shorter runs, commutes, or any activity where minimal carry is preferred.Why Our Fit Experts Love It""I grabbed the Slim Waistpack 4.0 for a few early morning runs and appreciated how little I noticed it was there. It held my key and a card without any shifting, and the reflective detail gave me some peace of mind running before sunrise."" - Sean, Road Runner Sports Fit Expert, Chula Vista, CAWho It's Best ForThe Nike® Slim Waistpack 4.0 is best for runners and athletes who want a minimal, secure way to carry essentials during daily training, road running, or on-the-go activities. It suits those who prefer to travel light and need just enough storage for keys, cards, and small items without the bulk of a larger pack. If you're looking for a waist pack that won't bounce or shift, this is your answer. VIP Family members can take the Slim Waistpack 4.0 for a 90-Day test drive with our Perfect Fit Guarantee."