This is a sub-5lbs super ultralight gear list designed for 3-season. It's not going to keep you very warm, but is extremely lightweight. This is a no-cook setup.
Pack
Nyoflume — 0.3 oz — $2.25
Zpacks Sub-Nero — 9.3 oz — $225.00
Shelter
3× Groundhog — 0.5 oz — $4.00
5× Mini-Groundhog — 0.3 oz — $3.00
allmansright Hölster Sack — 0.1 oz — $16.00
Zpacks Hexamid — 6.1 oz — $250.00
Sleep
Thermarest Uberlite reg — 8.8 oz — $230.00
EE Revelation 40 950CUIN — 13.9 oz — $360.00
Dream Sleeper Pillow — 1.8 oz — $25.00
Cooking and Water
2× Smartwater 1L — 1.4 oz — $2.00
3× Aquatabs — 0.2 oz
Clothes
Stanfields Sport Dryfx — 2.0 oz — $22.00
Appalachian Gear Company 8020 Alpaca Hoodie — 7.0 oz