Patagonia R1 Fleece Pullover Review

Overview

The R1 Fleece Pullover is the fleece that alpinists, ski tourers and long-distance hikers keep reaching for when the temperature drops and the pace stays up. Patagonia builds it from two weights of Polartec Power Grid, a grid-patterned fleece hybridized with its Capilene Thermal Weight baselayer fabric. The result is a slim, stretchy half-zip that vents quickly and packs small. The trade-off is that it is a mover’s layer, not a camp layer, and it gives the wind very little resistance.

Key Specs

Spec	Detail
Weight	306 g (10.8 oz)
Body fabric	6.9-oz Polartec Power Grid, 93% recycled polyester / 7% spandex, anti-pilling finish
Side and sleeve panels	3.8-oz Polartec Power Grid, 92% recycled polyester / 8% spandex
Fit	Slim
Closure	Center-front half-zip with low-profile zipper garage at the chin
Pocket	Zippered left-chest pocket with mesh pocket bag
Odor control	HeiQ Pure
Origin	Made in Colombia, Fair Trade Certified factory
Style number	40101
Price	$155 (US list)

Performance

Warmth and breathability. The R1 sits in the middle of the thin-fleece range. The grid face traps a layer of warm air in its recessed channels, while the open structure lets sweat vapor escape. Testers at Outdoor Gear Lab have long rated the R1 family near the top of the field for breathability and layering ability, and Section Hiker’s reviewer describes it as a layer that works best when the wearer is working hard. Reviewers who have tested the R1 Hoody, which uses the same fabric family, put it noticeably warmer than ultralight grid fleeces like the Senchi A90 and Black Diamond Coefficient. One reviewer called it roughly comparable to the heavier Fjällräven Keb. Another reviewer puts the comfortable range at roughly 30–55°F over a T-shirt during moderate activity, and 40–60°F at rest.

Hybrid construction. Patagonia swaps the body’s 6.9-oz grid for a lighter 3.8-oz jersey under the arms and along the sides. That trims bulk and dumps heat where hikers sweat most. It also improves reach overhead. The fabric has a smooth face, so a shell or wind shirt slides over it without grabbing, and the offset shoulder seams stay clear of pack straps and hip belts.

Wind and weather. This is the R1’s weak point, and every serious review says so. The open weave lets gusts through, and Outdoor Gear Lab scored the Hoody version a 6 out of 10 for weather resistance. The answer used by Section Hiker’s reviewer is a wind shirt over the top. That reviewer climbed a 4,000-foot winter peak in 30-plus mph wind in just a thin baselayer, the R1 and a wind shirt, and stayed dry and warm. On its own in a stiff breeze, the R1 will feel thinner than its numbers suggest.

Fit and features. The slim cut is trim enough to wear next to skin and under a shell, and owners who plan to layer a heavier piece beneath it should consider sizing up. The half-zip runs deep enough to dump heat on climbs, and the chin garage keeps the zipper pull off the skin. The chest pocket holds a phone, and its mesh bag breathes rather than trapping moisture. Fabrics carry bluesign approval and an anti-pilling finish.

Durability and value. Long-term owners report that the grid fleece holds up for years of hard use, with one guide’s decade-old R1 still in service after Kilimanjaro seasons and Alpine hut traverses. Skeptics exist. One Trailspace reviewer found it only middle of the road for the price, and at $155 the R1 costs more than many competent grid fleeces.

Pros & Cons

Pros

• Excellent breathability and quick moisture transfer for high-output days
• Stretchy hybrid construction moves freely and vents at the underarms
• Slim, low-bulk cut layers under a shell or wind shirt without bunching
• Pack-friendly shoulder seams and a deep half-zip for dumping heat
• 306 g, with a recycled-polyester body and a Fair Trade Certified factory
• Durable fabric that owners report lasting for years

Cons

• Little wind resistance; needs a shell or wind shirt in exposed conditions
• Limited warmth when standing around camp
• Slim fit leaves little room for a heavy layer underneath
• Priced above many comparable grid fleeces
• Heavier than the thinnest ultralight grid fleeces

Who Should Buy This

The R1 suits hikers, climbers and ski tourers who stay in motion in cool weather and want one layer that handles the shifts between a cold dawn and a sweaty climb. It is a strong fit for shoulder-season thru-hikes, alpine routes and winter day hikes when paired with a wind shirt and a puffy for stops. Hikers who need standalone camp warmth, or who plan to wear a fleece as a casual jacket in the wind, will do better with a thicker fleece or an insulated piece. Gram counters who only need a light layer for summer mornings should look at thinner grid fleeces.

Verdict

The R1 Fleece Pullover earns its reputation. It breathes better than nearly anything with comparable warmth, it layers cleanly, and it holds up to years of use. Buy it as the active midlayer in a system that includes a wind shirt and a puffy, and expect to pay a premium for it.