600D Hydraulic Fabric
The burliest fabric in all of Sea to Summit's products, this is constructed similarly to our Stopper fabric but has a few key differences. The Hydraulic fabric starts with a 600 Denier carrier fabric, then has TPU laminated to both sides of it to create an unstoppable waterproof, abrasion, and puncture resistant fabric. With two full and separate layers of TPU, you have some built-in redundancy against holes from abrasion. This fabric is also UV stabilized and won't crack in the cold.