From the Bog Dog team:
Lightweight, comfort focused pack designed for long run and race day essentials.
Designed for stress-free running on your longer days out, the Solus 5L pack has been rigurously tested by fell, trail and road runners alike to ensure ample storage, easy to access pockets and a comfort first design. Lightweight, wicking, durable and comfortable, Solus 5L gives you more than enough storage for long days out, regardless of your environment.