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Guideline Alta NGx Sonic Jacket

Regular price $729.99 NZD
Sale price $729.99 NZD Regular price
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Size: Small
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The Alta NGx Sonic Jacket is a bomb-proof shell for the truly dedicated angler who require best-in-class waterproofness and breathability. The jacket has a perfect fit with articulated shoulders and elbows that will avoid resistance when casting or moving along the water. The high fleece-lined collar, YKK Aquaguard® zip and our DuoDrag™ Sleeve Closure System keep you warm and dry in the most fierce weather conditions. Large chest pockets gives plenty of room for fly boxes and also features organizers for accessories. The whole Alta NGx Series is designed to offer the highest level of durability and comfort in our product line.\

Our model measures 184cm/78kg (6´1"/172lbs) and wears size Medium.

Body Measurement Chart


Mens size Regular Tops & Jackets XS S M L XL XXL XXXL
Chest 81-87 88-94 95-101 102-108 109-115 116-122 122-128
Waist 74-80 81-87 88-94 95-101 102-108 109-115 116-122
Seat 82-88 89-95 96-102 103-109 110-116 117-122 123-128
Arm length 59,5-60,5 61-62 62,5-63,5 64-65 65,5-66 67-68 68,5-69



The jacket is partly constructed with a high frequency ultrasonic welding technique and offer a very reliable level of waterproofness, a best-in-class breathability and yet remain flexible. The fit is generous in the right places with very articulated shoulders and elbows to avoid resistance when active. The snap down hood has a stiffened peak and a 3-dimensional tangle free adjustment.

A high fleece lined collar gives maximum protection when the cold get´s to you. In the front, the YKK Aquaguard® zip with a special downpipe construction behind it keep you dry in most fierce weather conditions. The two high chest pockets gives plenty of room for large boxes and are also featuring dual organizers for tippets & spools in each and one. Fleece lined hand warmer pockets are great when your hands needs a bit of help and all pockets are equipped with splash-proof YKK Aquaguard® zips meaning the hand warmer pockets doubles as extra pockets too.

 Dual Hypalon docking stations are great for adding accessories and a plier. The bottom hem has dual adjustments and a mesh drainage to avoid storing water when wading. Inside, a stretch and an Aquaguard® zipped pocket give great possibilities to store a pair of gloves and a cell phone in a safer place. Guidelines DuoDrag™ Sleeve Closure System keep water out the sleeve ends and includes warming neoprene velcro cuffs. The D-ring in the neck keeps your net in place..





As with all designs in Guideline, we try to do as little impact on the nature as possible, meaning besides having longevity as a top priority, we are also proud to say that all materials are PFAS-free and most are also bluesign® certified. The content of the Alta NGx series is of no exception.


 The Alta NGx Series is designed to offer the highest level of durability and comfort in all of our wading collections. The lineup includes Alta NGx wader, jacket and boots with different sole options. This series is specially developed for the modern fly angler who demands durable and comfortable wading gear packed with smart features. Our main goal help is to help anglers enhance their experience by the water, and the gear we develop strike a fine balance of protection from the elements with movability and long lifespan. Alta NGx has been manufactured with tough and durable materials that both withstand long and hard days on the water while leaving a low climate footprint, using partially recycled materials.


Breathability 20000
Colour Algae green/Graphite
Eco Friendly
  • bluesign® approved materials.
  • PFAS-free - Fluorocarbon Free
Fabric 3-layer 100% Nylon Taslan
Waterproofness 20000
Weight 754g / size L