We were lucky enough to field test these waders for Orvis when sonic seam technology first hit the water. We still have our original pair that Orvis sent to us over 2 years ago. We recommend them to ALL anglers, not just those looking for a quick easy packable pair to put in their airline duffel. At just 2 lbs. 6 oz. in size large, they pack down, pack in, and provide great comfort— perfect for backcountry fishing, travel, and carry-on luggage. 30% lighter than Pro Guide waders, they're super lightweight, more flexible and comfortable, yet rugged. Our all-new, cutting-edge waders pack down and save space and weight; perfect for long trips or for floatplane weight limits. A groundbreaking, patented, and exclusive sonic-welded seam technology eliminates threads that can wear out and stitch holes that, over time, can eventually leak. Leg seams run up the back of the wader to further reduce abrasion. A special three-layer breathable, waterproof fabric keeps you dry and comfortable. Detachable suspenders make for easy, quick conversion to waist-high waders.