Men's Filament Pullover™

Style# 57501OR

Featuring an incredible warmth-to-weight ratio, the ultra-lightweight Filament Pullover is a never-leave-it-behind down-insulated layer. Useful as a fall belay jacket on its own or as insulation under a ski jacket, the Filament cuts the chill when worn alone in cool weather and holds in the heat as a mid-layer in truly nasty conditions. The super-packable, DWR-treated 10D Pertex® Quantum fabric sheds moisture, further increasing the versatility of this featherweight, compressible, year-round down pullover.
Trim Fit






  • Lightweight
  • Water Resistant
  • 1/2 Length Front Zipper
  • Zippered Napoleon Pocket
  • Chest Pocket Doubles as Stuff Sack
  • Stretch Binding at Cuffs
  • Drawcord Hem


Fit: Trim Fit

Fabric Pertex® Quantum, 100% nylon 10D face // 800+ fill power down insulation

Avg. Weight (oz./g): 7.3oz / 207g (L)

Customer Reviews

Men's Filament Pullover (Review by Rich W.)

The filament pullover is becoming one of my go to pieces as a mid-layer or warm weather outer layer. The jacket is super light weight with 800 fill and the Pertex material. The jacket has kept me warm on the sailboats all winter and has been my work jacket at school. The jacket also is a trim fit so it can work as a bike commuter jacket too. No matter the weather this jacket keeps me dry and warm. If you pair with a hard shell the combo will be impressive for the coldest of weather. Thanks for making such a quality piece for a gear junkie.

(Posted on 2/25/15)

Great Midlayer (Review by Jimmy the Hun)

The pullover style keeps heat locked in for sure. Down has a way of keeping you at the right temperature, you just have to keep it dry. Pullover has no hand pockets, but I guess that keeps the weight down. It is light, weight to warmth, you're going to have trouble beating it.

(Posted on 12/12/14)

Perfect for all Occasions (Review by Michael)

I have used it for everything from an around the house sweater to throwing it over a t-shirt when it is 10 degrees; it always keeps me the right temp. It is super packable and fits perfectly in my pack for backcountry ski days. I would recommend it to anyone looking for a great multi-use pullover. I haven't tested the DWR and Pertex too much yet but seems to keep out a light rain at least.

(Posted on 12/10/14)

good, but could be great (Review by aleday)

The filament is a very good lightweight insulation layer. I've found it best as a stuff-away for a multi-pitch alpine climb or as a stop-and-hydrate pit stop on a long late winter/early spring ski tour when the temps aren't too cold, but you need a little extra warmth.

Please, OR, make a good garment great by giving the filament a helmet-compatible hood.

(Posted on 7/27/14)

exceeded expectations (Review by foreigner)

Love the feel of it; weightless, warm, comfortable. My son and I were fighting over who was going to wear it while watching TV. It's like wearing a personal cloud around you.

(Posted on 3/29/14)

So warm and light (Review by Jon)

Terrific piece of insulation. Honestly, this winter I've used it as much in the house as the turn-the-thermometer down house-shirt. But, I was doing a Catskill ravine (ice), ditched the parka and had this - wonderful, and my mind was blown when I realized that the pullover will be even handier as a big rock route ultra-light layer come summer. Thanks OR!

(Posted on 3/20/14)

Warmth without weight (Review by Dacker)

The Filament Pullover is astonishingly warm for its lightweight. I sometimes wear it as my insulating layer when backcountry skiing (at least until I heat up), but even if I don't intend to wear it I'll stuff it in the pack for emergencies. It takes up almost no room, and adds an extra layer of insulation if you are forced to bivy.

(Posted on 3/2/14)

Best insulation ever (Review by DMG)

Cool when its warm, Warm when its cool.
Packs down to nothing.
Ripstop fabric works great, I have caught it many times and not ripped the shell.
Buy one now.

(Posted on 1/28/14)

Light and warm (Review by Freddy Grossniklaus IFMGA guide)

I was waiting for OR to build that pullover. Super lightweight, compressible and pocket were it can be stowed away. No extras that weight the pullover down. Slick in design and cool colors. The down filling of 800 will add some warmth to a cold body and it is small enough to wear under a water proof jacket or just over a soft shell. A must for all seasons.

(Posted on 11/3/13)

Men's Filament Pullover™ (Review by By Tom Murphy)

The filament jacket is a super versatile piece that I use all the time. It is light and compresses down to the size of an orange. It's warm enough to be your warmest layer for cool nights in the summer or as part of a layering system for cold weather ascents and descents. It's so small that it makes a great security layer, just in case.

(Posted on 9/17/13)

Men's Filament Pullover™ (Review by By Nik)

Was blown away at how light this piece is and how warm it is for its weight. Taken this piece climbing a few times now and has been fairly durable for the light weight material used. Love this piece of clothing and it comes with me everywhere now.

(Posted on 8/31/13)

Write Your Own Review