Primary pieces of my three season kit:

1) Big Agnes Horse Thief sleeping bag - 28 ounces
2) Big Agnes air core pad - 22 ounces
3) Shires Cloudburst Tarptent - 38 ounces
4) Mountainsmith Ghost pack - 34 ounces

Total of these four items is 122 ounces (7 lb 10 oz). I could go lighter, but it's light enough for my knees. Plus the Cloudburst gives me room for myself and my dog.

I'm 5'10" and 170 lbs, I try to carry about 4500 calories of food per day. My normal diet is less than that, but I burn more on the trail.