he 'd talked me into moonstone raingear , a three season , two-man tent by sierra design , a marmot 30f sleeping bag , nalgene water bottles , a whisper-lite stove , msr fuel bottles , a pur water filter , patagonia fleece pants and jacket , asolo boots , and the kicker , a 5500 cubic inch internal frame backpack by osprey , just to catalogue the substantial purchases .