Nathan Hydration Vest Pack for Men/Women 4L with 1.5L Swift/Swiftra Bladder.

Designed specifically for the female form, the Airess' little sister offers all the same benefits in a more compact size. Save space and weight with this adaptive-fit vest that easily expands or contracts to conform to your body's contours. No matter your shape or size, the adaptive fit system ensures a comfortable and secure fit, even if you are between sizes or have recently experienced weight changes.

This lightweight and comfortable vest features no bounce, chafe-free materials and form-fitting design. The secure front shoulder zippered pockets provide quick access to essentials, while the front pockets are perfect for storing nutrition and optional hydration flasks. The top-of-the-line 1.5L hydration bladder is easy to fill and clean, ensuring you stay hydrated on the go.

With multiple storage pockets, including a dedicated phone pocket and additional hydration pockets, as well as 4L of extra storage on the back, you'll have plenty of room for all your essentials. Reflective details offer 360 degrees of visibility, keeping you safe on the roads during low-light conditions.

The adjustable sizing system provides a tailored and body-mapped fit for all body types, while the snug vest fit runs slightly on the smaller side. The vest is equipped with a 1.5L bladder, two storage pockets, a large main compartment, a back kangaroo pocket, and more. The design is specifically tailored to the female body shape, with lightweight and comfortable materials, secure front pockets, and unique features like a transparent zippered pocket for easy viewing of essentials.

Perfect for marathons, trail running, hiking, walking, cycling, climbing, and other outdoor activities, the Airess' little sister is the ideal choice for hydration on the go. Stay safe, comfortable, and hydrated during all your adventures with this versatile and functional vest.

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