Specification Brand : ERTUNA BulletPoint1 : Ultralightweight Design: Weighing just **0.2 lb / 3.7 oz / 103 g**, ERTUNA hydration pack is your go-to companion for cycling, running, hiking or work out. Minimal bulk, maximum mobility - Our hydration backpack is perfect for daily training BulletPoint2 : Customizable Fit for All-Day Comfort Water Backpack: Adjustable chest straps and side compression cords ensure a secure, bounce-free fit for all body types. Adjustable from 12.6” to 29”on shoulder straps. No chafing, just ergonomic support and fit BulletPoint3 : Smart Multi-Pocket System: Front Zippered Pocket of running vest - Safely store phones, keys, or cards with quick-access security. 2 Cargo Pockets: Vertical slots for water bottles (up to 500ml), energy gels, or protein bars – grab essentials mid-stride BulletPoint4 : Dual Rear Compartments: Main sleeve fits 2L hydration bladders (not included in this option), while the secondary mesh pocket organizes extra gear like windbreakers or trail snacks. Go with ERTUNA hiking backpack BulletPoint5 : Breathable All-Weather Performance: 3D mesh back panel and airflow channels wick sweat instantly. Stay cool and dry even during summer marathons or high-intensity workouts with ERTUNA hydration hiking backpack for women men BulletPoint6 : 360° Reflective Design :Reflective piping and logo accents glow under headlights, keeping you visible during pre-dawn runs or night cycling BulletPoint7 : Multiple Use: Our hiking backpack is suitable for hiking, running, MTB cycling, cycling, climbing, music carnival, and other occasions. This running hydration vest can be a are great companions for families and friends Capacity : 2 liters Color : Black Department : unisex-adult ExternallyAssignedProductIdentifier : 7603492119279 ExternallyAssignedProductIdentifier1 : 843820158151 ExternallyAssignedProductIdentifier2 : 0843820158151 ExternallyAssignedProductIdentifier3 : 00843820158151 GpsrSafetyAttestation : 1 ImportDesignation : Imported IncludedComponents : Water Pack ItemName : Hydration Running Vest Ultra-Lightweight for Women Men [2025 Upgraded], Breathable All-Weather Water Vest Hiking Backpack, Adjustable Water Backpack for Hiking, Cycling, Trail Marathon Race - Black ItemPackageDimensions_Height : 28.2956 centimeters ItemPackageDimensions_Length : 4.699 centimeters ItemPackageDimensions_Width : 21.4884 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sports-hydration-packs Manufacturer : ERTUNA Material : Polyester ModelName : HP-01 ModelNumber : HP-01 MountingType : Self Adhesive NumberOfPieces : 2 NumberOfPockets : 6 Occupancy : 3 Person PackageLevel : unit PartNumber : ERTUNA Pattern : Solid PocketDescription : 6 Pocket ProductDescription : Hydration Running Vest Ultra-Lightweight for Women Men [2025 Upgraded], Breathable All-Weather Water Vest Hiking Backpack, Adjustable Water Backpack for Hiking, Cycling, Trail Marathon Race - Black ProductSiteLaunchDate : 2025-04-29T18:35:10.571Z RecommendedUsesForProduct : Camping & Hiking Seasons : 266 Season Size : Adjustable SportType : Cycling SportType1 : Cycling SportType2 : Running SportType3 : Mountain Biking SportType4 : Motorcycling SportType5 : Mountaineering StrapType : Adjustable Style : Black SupplierDeclaredDgHzRegulation : not_applicable TankVolume : 2 liters UnspscCode : 53121603 WarrantyDescription : 12 Month