I make the Curtis Designs inflatable raft. It weighs 20 oz. If you’d like a brochure send me an email or personal message with your snail mail address and we’ll get a brochure out to you.
The only other alternative is the Alpacka raft. The Alpacka, an excellent product, is heavier and more expensive then ours, but made for rivers and other water that ours can’t handle.
The Sevylor Trail Boat is by far the cheapest of all, but is heavier and bulkier.