BlueField Unisex Sports Backpack for Hiking, Cycling, and Marathons

【Lightweight and Breathable】 Crafted from 85% nylon and 15% spandex, this running backpack features a mesh hole design that keeps your back cool and enhances comfort during sports. Whether you're running, cycling, or hiking, this breathable backpack ensures your comfort remains top-notch.

【Highly Comfortable & Adjustable】 The running hydration vest boasts a ventilated mesh construction that promotes air circulation and prevents heat buildup. This design provides excellent airflow and breathability, keeping you cool and comfortable throughout your workout.

【Safety and Large Capacity】 With 10-liter storage capacity and 8 spacious pockets, this backpack meets all your sports needs, including mobile phones, paper towels, keys, clothes, cash, water bottles, and energy gel. Reflective logos enhance nighttime safety, and quick-access pockets ensure your items are within easy reach for convenience.

【Recommended Size】 - Small (S): Chest Circumference 66-78cm / 25.98-30.71in - Medium (M): Chest Circumference 78-90cm / 30.71-35.43in - Large (L): Chest Circumference 90-102cm / 35.43-40.16in - Extra Large (XL): Chest Circumference 102-115cm / 40.16-45.28in

【Scope of Application】 Perfect for staying hydrated while running, marathon training, cycling, hiking, skiing, climbing, races, and outdoor training.gift this hydration pack to friends and family who enjoy outdoor activities for an extra layer of support and comfort.