For your mid-layer (to be worn under your rain jacket), you'll want to choose something warm, such as a sweater, sweatshirt or fleece. Helly Hansen makes the lightweight, zippered Polartec Daybreaker ...
For single day hikes, you need a smaller daypack that’s around 20L to fit the basics: waterproof jacket, rain pants, hat ... Consequently, I sized up to my Helly Hansen Transistor Backpack which is a ...