The S3, Silent Strategic Sling, was created with simplicity and stealth in mind. However, the lightweight sling isn’t always ideal for extended carry, or for heavier weapon systems. For those that don’t mind a little extra bulk, the S3 PRO is perfect for those looking for an ultra comfortable sling. Just like the original S3 Sling, the S3 Pro features silent operations, while adding a padded rear section to distribute weight. Additionally, the S3 PRO features an integrated elastic storage section ideal for tourniquet storage.