Chatham Sea Kayak Model Length Width Weight Capacity Chatham 16 Sea 5.00m 55.8cm 26.8kg 147kg Chatham 17 Sea 5.20m 53.3cm 28.6kg 158kg Chatham 16 Composite 5.00m 55.8cm 23.1kg 147kg Chatham 17 Composite 5.30m 54.6cm 23.6kg 158kg Chatham 18 Composite 5.40m 50.8cm 24kg 159kg