Dump those cotton underwear and that little league t-shirt and switch to a moisture wicking base layer. For comfort while hiking in Yellowstone National Park or fly fishing on the Gallatin River, your underwear should made made of synthetic fabric, merino wool or silk. Moisture wicking underwear dries much faster than cotton and moves perspiration away from your skin.
This is one of our favorite baselayers for hiking Yellowstone or fly fishing the Gallatin River.
The most versatile polyester baselayer with the greatest comfort range with Polygiene® permanent odor control.
A use and abuse must-have for groveling up a chimney pitch or scrambling high above timberline. Our Capilene® Midweight fabric hits the sweet spot of weight, breathability and wicking that is the essence of versatility worn alone or with additional layers. It keeps you dry and comfortable when worn during high-exertion activities in cool-to-moderate temperatures and insulates beneath a shell in cold weather. Constructed with a Polartec® Power Grid™ fabric, it has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. The fabric has 63–93% recycled-polyester content and is treated with Polygiene® permanent odor control. Features include a long center-front zipper for venting, internal neck tape for next-to-skin comfort, full underarm gussets for unhindered shoulder mobility, elastic thumb loops for secure hand coverage, flatlock seams to minimize chafing, offset shoulder and side seams to lie smoothly beneath pack straps, and a drop tail for additional coverage.
Features
Polartec® Power Grid™ fabric has a smooth face for easy layering; fabric’s brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance with Polygiene® permanent odor control
Internal neck tape on collar for comfort; locker loop for hang-drying
Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin
Offset shoulder seams eliminate chafing under pack straps
Full underarm gusset for range of motion and chafe-free comfort
Elastic thumb loops for secure hand coverage
Flatlock seams to minimize chafing; drop tail for more coverage
Materials
Solids: 4.4-oz (150-g) Polartec® Power Grid™ 100% polyester (93% recycled) double knit; heathers: 4.8-oz (160-g) Polartec Power Grid 100% polyester (63% recycled) double knit; both with Polygiene® permanent odor control
Our most versatile baselayer with the greatest comfort range is made with Polartec® Power Grid™ fabric with Polygiene® permanent odor control and Fair Trade Certified™ for sewing.
Our Capilene® Midweight Zip-Neck finds the right balance between weight, breathability and wicking performance. Versatile enough to wear alone or under layers, it keeps you dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with a Polartec® Power Grid™ fabric, Capilene® Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. Solid-colored fabrics have 93% recycled-polyester content, heathers have 63% and both are treated with Polygiene® permanent odor control. Features include a long center-front zipper for venting, full underarm gussets for unhindered shoulder mobility, elastic thumb loops to cover your hands, flatlock seams to minimize chafing, raglan shoulder seams and offset side seams that lie smoothly beneath pack straps, and a drop tail for better coverage.
Polartec® Power Grid™ fabric has a smooth face for easy layering; fabric’s brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance with Polygiene® permanent odor control
Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin
Raglan shoulder seam for better fit and mobility
Full underarm gusset for range of motion and chafe-free comfort
Elastic thumb loops help to cover hands
Flatlock seams minimize chafing; drop tail for better coverage
213 g (7.5 oz)
Materials
Solids: 4.4-oz (150-g) Polartec® Power Grid™ 100% polyester (93% recycled) double knit; heathers: 4.8-oz (160-g) Polartec® Power Grid™ 100% polyester (63% recycled) double knit; both with Polygiene® permanent odor control.
Our most versatile baselayer with the greatest comfort range is made with Polartec® Power Grid™ fabric with Polygiene® permanent odor control and Fair Trade Certified™ for sewing.
Our Capilene® Midweight Zip-Neck finds the right balance between weight, breathability and wicking performance. Versatile enough to wear alone or under layers, it keeps you dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with a Polartec® Power Grid™ fabric, Capilene® Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. Solid-colored fabrics have 93% recycled-polyester content, heathers have 63% and both are treated with Polygiene® permanent odor control. Features include a long center-front zipper for venting, full underarm gussets for unhindered shoulder mobility, elastic thumb loops to cover your hands, flatlock seams to minimize chafing, raglan shoulder seams and offset side seams that lie smoothly beneath pack straps, and a drop tail for better coverage.
Polartec® Power Grid™ fabric has a smooth face for easy layering; fabric’s brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance with Polygiene® permanent odor control
Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin
Raglan shoulder seam for better fit and mobility
Full underarm gusset for range of motion and chafe-free comfort
Elastic thumb loops help to cover hands
Flatlock seams minimize chafing; drop tail for better coverage
213 g (7.5 oz)
Materials
Solids: 4.4-oz (150-g) Polartec® Power Grid™ 100% polyester (93% recycled) double knit; heathers: 4.8-oz (160-g) Polartec® Power Grid™ 100% polyester (63% recycled) double knit; both with Polygiene® permanent odor control.
Our most versatile baselayer with the greatest comfort range is made with Polartec® Power Grid™ fabric with Polygiene® permanent odor control and Fair Trade Certified™ sewing.
It might be summer everywhere else, but in Yellowstone National Park, sometimes during the summer it can feel like the middle of winter.
Our Capilene® Midweight Bottoms manage the extremes of high-output exertion with the right balance of weight, breathability and wicking. Wear them alone or with additional layers to stay dry and comfortable in cool-to-cold weather. Constructed with Polartec® Power Grid™ fabric, Capilene® Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. Solid-colored fabrics have 66% recycled-polyester content, heathers have 33% and both are treated with Polygiene® permanent odor control. Features include a brushed-elastic waistband for next-to-skin softness, gusseted crotch for mobility, functional fly and flatlock seams that minimize chafing.
Features
Polartec® Power Grid™ fabric has a smooth face for easy layering; spandex for stretch and ease of movement with Polygiene® permanent odor control
Fabric’s brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance
Elastic waistband is brushed for next-to-skin softness
Gusseted crotch for comfort and unimpeded mobility
Functional fly
Flatlock seams to minimize chafing
193 g (6.8 oz)
Materials
5.2-oz (175-g) Polartec® Power Grid™ 97% polyester (solids: 66% recycled; heathers: 33% recycled)/3% spandex with Polygiene® permanent odor control.
Our most versatile baselayer with the greatest comfort range is made with Polartec® Power Grid™ fabric with Polygiene® permanent odor control and is Fair Trade Certified™ for sewing.
This is one of our favorite baselayers for hiking Yellowstone or fly fishing the Gallatin River.
The Capilene® Midweight Crew hits the sweet spot of weight, breathability and wicking. The essence of versatility, you can wear this piece alone or under layers to stay dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with Polartec® Power Grid™ fabric, Capilene® Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as warmth. Solid-colored fabrics have 93% recycled-polyester content, heathers have 63% and both are treated with Polygiene® permanent odor control. Features include a rib-knit collar with internal neck tape for chafe-free comfort, full underarm gussets for unhindered shoulder mobility, elastic thumb loops to cover your hands, flatlock seams to minimize chafing, raglan shoulder seams and offset side seams that lie smoothly beneath pack straps, and a drop tail for additional coverage.
Features
Polartec® Power Grid™ fabric has a smooth face for easy layering; fabric’s brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance with Polygiene® permanent odor control
Rib-knit crew at collar with internal neck tape for comfort; locker loop for hang drying
Raglan shoulder seam for better fit and mobility
Full underarm gusset for range of motion and chafe-free comfort
Elastic thumb loops help to cover hands
Flatlock seams minimize chafing; drop tail for better coverage
Simms' Lightweight Baselayer Bottom is the essential next-to-skin layer for building a rock-solid foundation that prioritizes all-day mobility, warmth and wicking.
Quick-dry, jersey knit polyester combined with sustainable odor control for maximum next-to-skin comfort
Flat elastic waistband and fly pouch designed with minimal seams for a chafe-free, next to skin comfort
Flatlock seam construction for next to skin comfort
FABRIC TECH: Body - 192 gsm 92% spun polyester, 8% spandex finished with HeiQ Fresh odor control + HeiQ Speed Dry ITEM #: PG-13311View full product details
No contest, the Midweight Core Top - Quarter-Zip brings winning warmth to fishing missions that span fall through winter. Anti-odor, wicking fabrics help generate heat by moving moisture away from your body. Flatlock seams ensure all-day comfort. And the shirt's brushed interior and tall collar work together to fight cold-front weather so you can stay toasty from daybreak to last cast.
Made with anti-odor & moisture-wicking fabric with brushed interior for warmth
Quarter-zip design with tall collar for additional warmth
Flatlock seams for comfort
Machine wash & dry. See garment label for details.
FABRIC TECH: 100% polyester micro brushed fleece back FABRIC WEIGHT: 7.17 oz./yd.2 WEIGHT: 13 oz. (368.5 g) ITEM #: PG-12639
Our warmest midlayer for cold days, the M's Thermal 1/4 Zip Top adds warmth on its own, or layer it under your favorite jacket to dial in reliable comfort. A grid-fleece interior traps heat next to-skin without adding bulk or limiting range of motion, and a smooth exterior makes for seamless layering.
Smooth faced grid-fleece layers perfectly with our baselayers to provide maximum warmth
High collar with a quarter length zipper allows for venting and easy on and off
FABRIC TECH: Body - 255gsm 93% polyester, 7% elastane finished with antimicrobial + moisture management ITEM #: PG-13314View full product details
Our warmest midlayer for cold days, the M's Thermal Pants feature a grid-fleece interior that traps heat next to skin, without adding bulk or limiting range of motion.
Smooth faced grid-fleece layers perfectly with our baselayers to provide maximum warmth
Self fabric waistband with dual snap closure and zippered fly allow for easy on and off transitions
Dual slash handwarmer pockets
Patterned with a gusseted crotch for maximum comfort and easy layering with bibs or waders.
Tapered hem for a streamline fit when wearing layers underneath and over top
FABRIC TECH: Body - 7.52 oz./yd.2(255gsm) 93% polyester, 7% elastane finished with antimicrobial + moisture management ITEM #: PG-13315View full product details