Product details:

Hyperlite designed the minimalist 2400 Porter for the expert ultralight backpacker, climber and mountaineer who moves fast, goes far and travels light. Great for a day rock climbing at your local crag, but even better for a full on, 24-hour alpine adventure up the Diamond of Longs Peak. In winter or summer, this bag will carry your rack, rope, food, water, helmet and extra clothes, plus a bivy sack and sleeping bag if needed. If you're splitting the rack and rope with your partner, compress this gem down to a 25- or 30-liter pack. The 2400 Porter has the same features as the Porter 4400, but with decreased volume and four side compression straps instead of six. Made from 100% waterproof Dyneema Composite Fabrics (formerly Cuben Fiber), this backpack is highly durable and weatherproof. Use it with Hyperlite Stuff Sacks for a nearly perfect waterproof kit.