As with everything tent design is a compromise, if you need a full 4 season tent then the main difference is the ability to stand up to high wind speeds approaching 80 mph and will come with 4 and 5 pole geodesic designs. 4 and 5 season tents are considerably heavier. If the 3 season Hubba Hubba is 400 grams lighter than the MEC Gemini ES, this means you can keep warmer by adding a down jacket to your pack during colder spells for the same pack weight. On the other hand the more internal mesh will help with condensation, ventilation and humidity issues during warmer weather, when you are most likely to be using the tent.

I'm currently trying out this tent.



Highlander Proforce single man tent attached to the back of a Lowe Alpine Contour Crossbow 50.

Its no lightweight at 2.8 Kg for a roomy single man design but is nearly bomb proof, takes about 2 min to setup (the inner just needs staked out and the fly thrown over the inner) and allows a camp to be set up very stealthily when used in conjuction with a 9ft x 9ft camo net.