Fleece is a soft, breathable synthetic (polyester) knit used as a warm, quick-drying mid layer. It insulates even when damp, breathes well for active use, and is durable and affordable, though it is bulky and not windproof. Fleece comes in weights from light grid fleece to heavy jackets.
A synthetic jacket is insulated with man-made fibers that mimic down, offering reliable warmth that — crucially — keeps insulating even when wet and dries fast. Synthetics are cheaper and more weather-tolerant than down but heavier and bulkier for the same warmth, making them ideal for damp climates and active use.
A down jacket is insulated with down — the soft, lofty plumage under bird feathers — giving the best warmth for its weight and packing down very small. Down's weakness is moisture: it loses loft and warmth when wet, so it excels in cold, dry conditions and is often paired with a shell or treated to be water-resistant.
A rain jacket is a waterproof, breathable outer layer designed to keep you dry in rain. It uses a waterproof membrane or coating and taped seams, with a DWR finish that makes water bead off the surface. Rain jackets range from light packable shells for emergencies to burly hardshells for sustained storms.
A softshell is a stretchy, breathable outer jacket that blocks wind and sheds light moisture while letting you move freely, ideal for active use in dry or variable conditions. Softshells trade the full waterproofing of a hardshell for comfort, breathability, and durability, making them popular for climbing, hiking, and ski touring in fair weather.
A hardshell is a fully waterproof, windproof outer jacket built to keep rain and snow out in serious weather, typically using a membrane like Gore-Tex with taped seams. Hardshells are tough and protective but less breathable and stretchy than softshells, making them the go-to for storms, alpine climbing, and wet conditions.
A backpack is a fabric pack worn on the back to carry gear, with shoulder straps and usually a hip belt and frame to transfer load to the hips. Outdoor backpacks range from small daypacks to large multi-day packs measured in liters, and a good fit — load on the hips, not the shoulders — is the key to comfort.
Trail running shoes are lightweight, flexible shoes with aggressive lugged outsoles for grip on dirt, rock, and mud. Originally for running, they are now widely used by hikers and backpackers for fast, light travel. They prioritize low weight and breathability over the support and durability of hiking boots.
Hiking shoes are low-cut, lightweight versions of hiking boots, offering grippy soles and trail protection without the higher ankle support. They suit day hikes and lighter loads on moderate terrain, splitting the difference between heavy boots and trail-running shoes for hikers who want some support but less weight.
Hiking boots are sturdy, supportive footwear with grippy lugged soles and higher ankle support, built for carrying loads over rough, uneven trails. They offer durability, protection, and stability — especially with a heavy pack — at the cost of weight compared with trail-running shoes, which many hikers now prefer for lighter, faster travel.