Don't Miss Free 2-Day Shipping on Orders Over $50* — Ends Today
Lightweight InsulationLightweight Insulation

Move over, down and polyfil—the SmartWool PhD SmartLoft Divide Full-Zip Top maximizes the versatility of merino wool to keep you warm in brutally cold weather. Wear this zip-up as a heavyweight baselayer when you're skiing or climbing in extreme conditions. Or, wear it by itself and let the DWR-treated front panel shield you from wind and light snow. Either way, this versatile layer capitalizes on a smart mixture of wool and synthetic fibers to ensure maximum performance in a wide range of conditions.

  • DWR-treated nylon chest panel protects you from full-frontal weather assaults
  • Packable SmartLoft wool insulation inside the chest panel traps body heat around your core
  • MerinoMax back and side panels use a touch of elastane to keep you mobile
  • Pure merino wool lining offers next-to-skin comfort while it helps your body regulate its temperature
  • The natural anti-microbial properties of merino wool help keep this heavyweight baselayer fresh between washings
  • Semi-form fit is great for layering without being too skintight for solo wear
  • Low-profile inseam thumbholes stop cold air and snow from moving up your sleeves and make it easy to layer over the top
  • Asymmetrical zippered chest pocket safely stores your beacon, and it has a cord port for your media player
  • Easy-care design means this zip-up can go straight through your washer and dryer

Share your thoughts

Review Summary
3 4
0 3
1 2
0 1

What do you think of the

SmartWool PhD SmartLoft Divide Full-Zip Top - Men's

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

How does this product fit?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

5 5

Liked it so much I bought a second!

I do a lot of bicycle riding --both commuting to work and on the weekends. I bought an XL on sale while visiting Boston, and liked it so much that I bought a second, L size (XL is for street clothes, and L is for bike tights and snug fit.) I have worn in bitter cold (20s with wind), and in 40s. Always comfortable temp not too hot or cold. Best feature for me: the insulation in front that protects against wind chill. Highest rating possible!

5 5

Great top for chilly weather

  • Familiarity: I've used it several times
  • Fit: True to size

Picked this up because I loved added warmth added to the chest region and used for a 10 day trip hiking around Banff. Besides the occasional rain where I donned my rain jacket, this was the only top that I wore when we were hiking up Castle Mountain and other hikes. I really appreciated that the insulation doesn't extend to the back where I was carrying my pack and so I don't feel like I was wearing a swamp during my hike. I normally wear a Medium but got this in a Small and it's a little snug but still fits great.

3 5

Read closely

  • Gender: Male
  • Familiarity: I returned this product before using it

Didn't have the same material thru the front and back. Other pieces in this category had a more consistent look and feel. I returned in favor of a Mammut jacket that was less expensive and more consistent.

Responded on

...that's not a bug, its a feature! The insulation in front cuts the windchill for biking, hiking, skiiing.

Responded on

Do not remember nor can I see where I called it a bug... I went with something to cut windchill consistently. Hope that doesn't offend you Mark.

5 5

New Favorite

  • Gender: Male
  • Familiarity: I've used it several times

I picked this up a couple of weeks ago and have found myself wearing it everyday. The weight is perfect for a cool fall day and with the wool it tends to have a much broader temp range than the synthetic piece it is replacing. Also pleased with how well it layered up when we had a colder than normal day and I needed to through a jacket over it - new favorite!