While it's possible, we don't recommend it. The 5L vest is designed for short distances using the front soft flasks. A bladder takes up crucial space, creates poor weight distribution, and offers less convenient access.

With its adjustable side straps, the Haimont 5L vest offers a secure fit for a wide range of body types, from petite women to taller men. It's ideal for any runner seeking a lightweight solution for short-to-mid distance trail running.

It's a total all-rounder! The 5L vest is incredibly versatile, perfectly balancing lightweight performance and functionality, making it ideal for both racing and daily training. For races, it's your speed tool. For training, it helps you simulate race-day conditions.

Prioritize a secure, bounce-free fit. The vest should feel like a second skin, with no chafing or movement. For storage, ensure it easily holds two 500ml soft flasks upfront and has organized space for gels, your phone, and keys.

It's an ideal choice for beginners! The Haimont 5L vest strikes the perfect balance between a "lightweight feel" and "safety preparedness." It carries essential gear without overwhelm, helping new trail runners build safe habits.

A belt wins on absolute weight. However, the vest often feels lighter because it distributes weight across your torso, minimizing bounce. If minimal weight is your goal for simple runs, choose a belt. For most runs over 10km or on trails, the 5L vest wins on overall comfort and stability.

Not at all! Instability comes from poor fit or packing, not small capacity.​​

Pro Tip for Stability:​​

• ​​Get the Right Fit:​​ Ensure the vest size matches your torso length. Tighten all straps for a snug fit.
• ​​Pack Smart:​​ Put heavy items high and to the front (flasks, phone). Light, bulky items (jacket) go in the back.
• ​​Fill the Space:​​ Use a light item like a jacket to fill space and prevent shifting.