this rei piece took gearlabs best buy award in 2018 so i bought it, but have never really worn it since. it’s in perfect condition. super soft and cozy with thumb loops. retailed for $99 at rei and is about as warm as the much more expensive patagonia r3 or mountain hardware monkey man stuff which is similar. 14oz in size Medium. i would say this is normal fit vs athletic fit of arcteryx and some others

here is what rei says:

Polartec® Thermal Pro® high-pile fleece is breathable, quick-drying and warm

Polartec Power Stretch® Pro™ side panels reduce bulk and add flexibility

Highly compressible fabric packs down small

Raglan sleeves keep seams off the shoulders to reduce chafing under pack straps

Zippered hand pockets are hipbelt compatible

Thumbholes keep cuffs in place

Here is the review by gearlab: