The temperature is so cold that it would freeze your body if you were exposed, so you would still need an airtight seal. But the atmospheric pressure is high enough that you wouldn't need a bulky vacuum-proof pressurized spacesuit.
A drysuit for scuba diving is ambient-pressure airtight, basically just a neoprene coverall with sealed seams. It's easy to move around in.
But take away the external pressure, and you're in the middle of a 15 psi balloon,w which wants to be a sphere, not human-shaped. It becomes difficult to bend your limbs and fingers. Rotating a shoulder, neck, or wrist causes the suit to twist in like a party balloon. Anywhere the cross-section is not circular, it wants to be more circular.
You either need a hard shell suit, a tolerance for this difficulty, or a lot of engineering.