Marmot Reactor Sweatpant

Where to Buy

sponsored links
Help support this site by making your next gear purchase through one of the links above. Click a link, buy what you need, and the seller will contribute a portion of the purchase price to support Trailspace's independent gear reviews.

Retailers' Descriptions

Here's what other sites are saying:

The Marmot Reactor Sweatpants are a secret weapon under shell pants on moderate to cold days, allow you to stay out longer and more comfortably. They are equally comfy as casual weal since they are not a tight fit.

- Mountain Gear

Marmot gave the Men's Reactor Fleece Sweatpant a relaxed fit to make them a comfortable layering piece for skiing, snowboarding, and hiking. Soft 100-weight fleece insulation gives you just enough warmth to keep from being chilled and won't cause you to overheat during the approach. The Reactor Fleece Sweatpants also have one rear and two front pockets to make them more usable as stand-alone pants around camp or hanging at home.


This secret under-shell layer by Marmot, the Reactor Sweatpant, will keep you outdoors when the mercury plummets and your buddies are headed in. It features a back zip pocket to secure small items and an elastic draw cord waist for adjustability and comfort. The Reactor Sweatpants also have Lycra bound side seam pokcet for minimized bulk.

- ClimbingGear

The Reactor Sweatpant by Marmot is the secret weapon under shell pants on moderate to cold days. Stay out longer and more comfortably. Not a tight fit. Average Weight: oz (g) Features: Micro polyester fleece with soft hand Lycra bound side seam pockets Back zip pocket Elastic draw cord waist Standard Fit Fabric: Shell: Roost P-480

- Moosejaw

Marmot Reactor Sweat PantColor Shown:Black Secret weapon under shell pants on moderate to cold days. Stay out longer and more comfortably. Not a tight fit.Features:Cozy cool weather sweatpant or secret-weapon warmth underneath shells or soft shells for wi

- US Outdoor Store

Marmot Reactor Sweatpant


The Reactor Sweatpant has been discontinued.

previously retailed for:
$26.98 - $55.00

The Marmot Reactor Sweatpant is not available from the stores we monitor. It was last seen July 9, 2016 at Mountain Gear.

Recently on Trailspace

Win a Therm-a-Rest Parsec Sleeping Bag and NeoAir Mat

Swing Trek Liteflex Umbrella Review

Idahoan Premium Hash Browns Review

Kelty Noah's Tarp 12 Review

MSR DragonFly Review

Summer Escape