A duffle bag made partly from old car windscreens sounds like a marketing gimmick. Australian Geographic's gear tester took two of them to Nepal to find out whether the story holds up — and came back largely impressed.
The bags in question are Sea to Summit's new Meridian and Talus ranges, both built with a waterproof laminate called ReSHIELD. The material repurposes polyvinyl butyral film salvaged from damaged vehicle windscreens, tested beyond a 10,000mm hydrostatic head, so the exterior sheds water and wipes clean. It's a genuinely circular bit of engineering rather than a pure green claim.
The two ranges split the workload. The Meridian is the lighter, travel-oriented option in 40, 60 and 90 litres, weighing from about 1.05kg to 1.49kg, with a 600-denier recycled polyester body. The Talus is the expedition bruiser at 80 and 120 litres (1.4kg and 1.7kg), stepping up to burly 1500-denier fabric, a padded lid and a Hypalon rail around the body for lashing to vehicles or porter loads, rated beyond 100kg. Both use 1000-denier recycled nylon at the bases and ends where trolleys, rock and ice do their worst.
The tester put a 90-litre Meridian and 120-litre Talus through international and domestic airports, helicopter transfers, Himalayan porter loads and the rocky moraine of the Khumbu Glacier on an Everest Base Camp trek. The oversized D-shaped lids — the zip curves down the sides rather than just across the top — opened wide enough to swallow a hard camera case, a minus-30-degree sleeping bag and everything else without the usual wrestling match. The heavy YKK #10 zips stayed smooth despite being overfilled and compressed, and the low-profile grab handles on all four sides made dragging bags off trolleys and out of helicopter loads easy. Backpack straps are properly designed rather than an afterthought: removable, colour-coded on the Meridian, doubling as hand handles on the Talus.
A couple of honest gripes surfaced. On the Meridian, the metal strap hooks can work loose when the backpack straps are attached but not under tension — a small keeper would fix it — and the included packing cube is heavy-duty enough that you'll feel it in the luggage allowance.
For travellers, the takeaway is simple: these are bags for people hauling awkward kit through rough logistics — trekking gear, camera cases, ski kit, overland loads — not for a city weekend. The Meridian suits airport-and-teahouse travel where weight matters; the Talus is for expeditions where durability wins. The converted windscreen laminate is a nice bonus, but the real value is the sensible design: one big compartment, a couple of pockets, handles that don't snag and zips that keep working in the cold.
