Description: - 【Versatile Design】: This hydration vest is designed for both men and women, making it a versatile choice for a wide range of outdoor activities such as running, hiking, cycling, climbing, and jogging - 【Ample Storage Capacity】: Despite its compact 4L size, this backpack offers ample space to carry essentials like your phone, keys, and wallet. The rear zippered pocket provides additional storage space for your convenience - 【Material】: Made from nylon with a micro elastic honeycomb mesh design, this running backpack enhances breathability with small ventilation holes that accelerate sweat evaporation - 【Comfortable Fit for Active Use】: With a vest length of 40 cm and water bottle pocket width of 13 cm, this hydration vest is tailored to provide comfort during intense physical activities while ensuring easy access to hydration on the go - 【Essential Gear for Outdoor Enthusiasts】: This hydration vest is an essential item for outdoor sports enthusiasts who value comfort and convenience in their gear. It enhances your outdoor experience by providing easy access to hydration and storage solutions while keeping you comfortable throughout your adventure Specification: - Material: Nylon Size Chart: vest length: 40cm/15.75inch water bottle pocket width: 13cm/5.12inch Package Includes: 1 Hydration Vest Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.