Sierra Designs’ Transporter gloves had a standout design feature that enhanced comfort and flexibility – outstitched seam construction.  The front leather was sewn to the glove so that the spare leather at the seam was on the outside of the glove, not inside like most seams. (When I was on wildfire crews we turned our government-issued leather work gloves inside out so that we didn’t have to fight the seams to grip, and the seams wouldn’t rub against our hands.)
 
Very flexible goatskin leather covered much of the shells with reinforcement patches over wear points on the thumbs, forefingers and palms, and there was stretchy soft shell material over the back. The Transported didn’t have insulation as such, but the polyester fleece lining was fairly thick and there was padding on the knuckles and back of the hand that helped keep my hands warm.  The cuffs were neoprene but they had a fleece lining that helped control sweatiness, and there was a hook and loop closure.  A nice extra that I always appreciate was a nosewipe patch on the thumbs.  

Performance & Dexterity:
The combination of goatskin leather and outstitched seam construction gave the Transporter great grip.  They held poles and tools very well.  

I had problems with the neoprene cuffs – they were bulky, so they didn’t fit under sleeves as nicely as I would have liked, they were hard to grasp and difficult to pull on, and they didn’t stretch so I always had to work the hook and loop closure to get them on and off.  The polyester lining fit well and didn’t bunch up or pull out when donning or removing the gloves over wet hands.  

Though the gloves aren’t insulated, the padding and thick lining kept my hands very warm, even on colder days.  Breathability was excellent, but they aren’t waterproof and the leather will absorb some moisture from snow if it’s at all wet.  An application of waterproofing wax could help for touring in warmer weather.  

Durability:
I thought the durability was just adequate.  The leather and exposed stitching showed some wear and tear after a while, though it was admittedly rough use.