A hiking daypack should carry water, snacks, extra layers and small essentials without becoming bulky or uncomfortable on the trail. Capacity is an important starting point, with smaller packs working well for short outings and larger models offering more room for longer hikes or changing weather. Buyers should also consider back ventilation, strap support, water resistance, storage layout and whether the backpack can fold down for travel. This comparison includes the versatile SKYSPER 20L Daypack, the compact G4Free Packable Backpack and the supportive Osprey Hikelite 26L for more demanding hikes.