Dakine Men's Heli Pro 20L Backpack, 20L Enough room for big missions if you pack light or smaller ones if you bring extra gloves, extra layer, extra chocolate bar—you get the idea. The Team Heli Pro 20L is the small, do-it-all pack with features demanded by backcountry or slackcountry exploration, including purpose-built snow tool sleeves, a large fleece-lined goggle pocket, and a hydration sleeve that doubles as laptop storage off the mountain.