I bought the 5lt vest as a "summer" option. It's really soft and lightweight, no rough seams anywhere. Easy to access pockets, zips don't make annoying tapping noises like my other vest! I waited until I completed a couple (albeit shortish) runs before writing this review. Really like the way it fits, feels snug but not restrictive. I then ordered the wide neck bottles with long straws. Wide neck is great for adding nutrition powder, plus makes it easy to clean and pretty quick to dry. The long straws mean I don't have to remove the drink from the pocket, which is a great bonus. Straws come parts and are easy to clean too. All in all I am very happy with my purchases.