I know you asked about camp shoes, but if you also want a serious lace-up camp shoe that will double for very secure wading and also work to actually walk out if your shoes get lost or fall apart, I have a pair of the lightest available running shoes. These are the specialized racing shoes (look on the internet on special running sites). My shoes (men's size 7) weigh 6.5 oz each shoe - or 13 oz. They were expensive (got them at Fleet Foot for about $70 years ago). If I take out the foot liner they weigh 12 oz. total - I hike in super-feet inserts, so use these when I wear them around camp. They actually have very roomy toe box. If you use them for wading you need to replace the cotton laces with laces that do not absorb water. I think some of these high-end shoes are even lighter now than when I bought mine about 6 years ago. I also have crocks, but take the running shoes if I anticipate really serious crossings. My crocks really are not comfortable enough to walk 10 miles.