Comfortable & Secure
Bought this along with a couple of the V6 masks. Whereas the lightweight V3 masks stay up nicely on their own, the V6 masks are a bit too heavy to stay up on their own with my small ears. The strap holds the V6 up very securely and makes the mask very comfortable to wear for extended periods. I haven't tried it yet with other masks, but it seems like the same characteristics would apply to make other masks fit more securely while retaining good comfort over time. Recommended!