What is the weight capaciy of a touring kayak?
Many factors influence the amount of gear and the weight your sea kayak can hold. These include: weight distribution, weather factors, paddler weight and size, and skill level. That's why it is difficult to give a specific answer in number of pounds, because there are so many combinations of factors possible. (It's a bit like asking how much weight a backpack can hold.) The performance of your kayak, and your comfort in paddling it, will also be affected by the amount of weight and the way the kayak is packed.
As a generalization, sea kayaks which are trimmed, outfitted and packed properly can hold a combined paddler and gear weight of 200-250 lbs. Again, please keep in mind that this is a generalization. You should always practice packing your sea kayak and paddling a packed kayak prior to any trip. It is also very advisable to practice your self-rescue and rolling techniques with a loaded kayak prior to an expedition.
When packing a sea kayak, try to distribute the weight evenly and keep the weight low within the storage hatches. It is wise to strap down the load to prevent shifting in difficult waters, which may upset the balance. Again, practice, practice, practice! 
