O'Neill Assault Hybrid Drysuit The O'Neill Assault Hybrid Drysuit has a breathable nylon upper made of abrasion resistant nylon and 3mm neoprene lower. Loose fit on top and performance fit below for maximum rider mobility and comfort. Super dry and extra thick latex ankle and wrist seals are more durable and keep you drier than those on less expensive suits. Waterproof horizontal back zipper. Chafe-Free smooth skin neoprene neck seal keeps you dry and is much more comfortable than drysuits with latex neck seals. All seams are fully taped to provide greater durability. You can find a less expensive drysuit but you can not find a better option.