We used to make some composite riot kayaks once upon a time. But unfortunately at this time we no longer have or manufacturer any composite kayaks.

The lightest weight ones are the ABS Thermoformed plastic ones between 30 - 40 lb range.

Intrigue Kayak: https://riotkayaks.ca/collections/recreational-kayaks/products/intrigue-kayak

Edge 13 Kayaks:  https://riotkayaks.ca/collections/day-touring-kayaks/products/edge-13-thermo-kayak

hope this helps,