Need to know when you should start looking at getting a running pack? See here Having used the Adv Skin 5 (that is, the 5 litre capacity version) for 6 months; I needed an upgrade that could hold more gear as my long runs got longer. My new Adv Skin

For a guide on when you should look to buy a running pack, see this article. I brought the Salomon Adv Skin 5 way back in January 2020 (Which, especially due to the lockdown life we've been all leading, feels like a century ago).  At the time I was significantly