If you're upgrading or replacing your stock Arai XD4 shield, we strongly recommend going with this Pinlock-ready replacement visor. Equipped with the brow-vents that come on the stock, non-Pinlock shield, this option comes in clear only, and can be combined with a variety of Pinlock inserts (sold separately) to provide your desired level of tint, with all the benefits of Pinlock.
If you’re not familiar with Pinlock, you should be—because it’s no less than the best advance in helmet technology of all time. In essence, the two clear plastic posts you see on either side of any Pinlock-equipped visor are designed to accept a model-specific Pinlock Insert, which amounts to a piece of die-cut plastic with a silicone seal. Snap the insert into the corresponding visor and you create an insulated double-pane storm window – which is miraculously impervious to fogging that any rider who’s spent any amount of time with a full face helmet knows well.
For maximum versatility we recommend going with a clear insert, and supplementing with your standard sunglasses, which slot fairly easily into the XD4.