www.comfykayak.com/expedition The GTS Expedition: Top Quality Support, Comfort and Durability. Six Point Rear Attachment System Allows for Fine-Tuning Your Angle and Lean. Secure: No More Kayak Seat Slippage. Thick, Comfy-Cushion Seat Bottom. Bungee Pack Conforms to the Shape of your Gear. Drainage Channels in Seat Funnel Excess Cockpit Water.