Base Layers and Underwear

Categories

Tops
Bottoms
One-Piece Base Layers
Boxers, Briefs, Bikinis
Sports Bras
Arm and Leg Sleeves

Brands

ExOfficio
Patagonia
Arc'teryx
Marmot
SmartWool
Stoic
Icebreaker
Ibex
Polarmax
Helly Hansen

Genders

Unisex
Men's
Women's
Kids'
Boys'
Girls'

Price

less than $25
$25 - $49.99
$50 - $99.99
$100 and above

Recent Base Layer Reviews

ExOfficio Give-N-Go Boxer Brief

rated 5 of 5 stars Best underwear ever. Period. I kept reading reviews about these and finally pulled the trigger on a pair from REI. Great move on my part, now I have replaced ALL of my boxer briefs with these. I wear them every day, at work, on the trail, at the gym they are my all purpose go to "draws".  These wick like crazy and stay dry even during strenuous workouts or long hikes. My only gripe and its a relatively minor one, they could offer a little more support than what they do (mostly important for running… Full review

Mountain Equipment Crux LS Crew

rated 5 of 5 stars The Mountain Equipment Crux LS Crew tee is an excellent synthetic (polyester) baselayer suitable for year round use. It features Polygiene anti-microbial technology which works reasonably well to limit odour. The main selling point for me is the excellent construction and durability which has impressed me over the past two years. From Mountain Equipment:  A close fitting tee that efficiently wicks moisture away from the skin and dries quickly on the move. Built in Polygiene anti-microbial technology… Full review

Woolx X704

rated 4 of 5 stars The Woolx X704 1/4 zip heavyweight merino pullover made from 100% Australian Merino Wool (400g/m2, 18.5 Micron) is impressively warm for its size (volume and weight). The attractive design and well-fitting athletic cut, combined with its excellent performance in a wide range of conditions make it an ideal mid layer for all manner of outdoor pursuits. From Woolx: A heavyweight ¼ zip pullover made from 100% Australian Merino Wool (400g/m2, 18.5 Micron). Fit/Adjustability: My measurements are a 43-inch… Full review

Coldpruf Men's Platinum Pants

rated 5 of 5 stars Best bang for the buck in long underwear. Perfectly comfortable, durable, warm, and air dry fast. Bought mine from Campmor. Reordered more when I realized how good they were. Made next door in Mexico. Full review

SmartWool Midweight Turtleneck

rated 5 of 5 stars Luxurious warmth!!!! WOW! I could just leave it at that but I will elaborate. I first bought the SmartWool NTS 250 bottoms, which I love, so when I saw this shirt on sale I couldn't resist. Although both the top and bottoms are NTS 250 the top is much thicker and sooooo soft. I like staying warm outdoors and this shirt has kept me just that! I wear it all winter and bring it along for all my hiking and camping endeavours in the summer as well. I usually sleep in it when I'm at higher elevations… Full review

SmartWool Women's NTS Mid 250 Bottom

rated 5 of 5 stars These are without a doubt the best long johns I have ever owned! I am 5'7", 125lbs and I bought the mediums. They fit like a glove (well literally as they are next to skin). So comfy and non restricting, you barely notice you have them on. I did a lot of research in my quest for super warm long johns and came to the conclusion that wool was going to be the warmest. I am not disappointed. The waistband is wider so they don't roll down as some other brands do. I love being outdoors but don't like… Full review

First Lite Chama Hoody

rated 5 of 5 stars My First Lite merino clothing keeps me comfortable in the cold mountain mornings and when I am hiking during the warmer parts of the day. Great for layering or for sleeping in on those cold nights. Pull the hood up, cinch it down for added warmth. The Chama Hoody is a versatile top. It can be used as a base layer on those cold hikes through the woods, or as a stand-alone sweater on those days where a jacket is too much. The hood, with its cinch string, is useful in a cool environment, but you will… Full review

Avalanche Wear Mogul Pant

rated 5 of 5 stars These pants are incredible. I've worn and washed them 100 times and they still look and feel new. These pants are INCREDIBLE. I have washed and worn them 100 times. Not only have I been wearing them as a base layer under my ski pants but I wear their legging style all winter. Since I live in leggings all year these are perfect for winter because they have a fleece lining and I swear they are wind block (even though I don't think they are). Anyway, I have been reading about other people's pants pilling,… Full review

ExOfficio Give-N-Go Boxer Brief

rated 4.5 of 5 stars These might replace every pair of underwear you own. Okay, maybe not at $25 a pair, but they are comfortable, lightweight, incredibly fast at wicking away moisture and quick drying. Yep, they are that good. When I purchased my first pair of these in 2009, I would have said $25 is rather expensive for a pair of underwear and would have listed that as a con. Today, as I see other performance underwear being sold for $30-$50, I realize that $25 is reasonable and well worth the investment. If you're… Full review

Top-Rated Base Layers and Underwear

Sort by: name | rating | price | availability | recently reviewed

user rating: 5 of 5 (6)
ExOfficio Give-N-Go Boxer Brief Boxers, Briefs, Bikini
$16 - $26
user rating: 5 of 5 (3)
Patagonia Capilene 2 Lightweight Zip-Neck Base Layer Top
$28 - $55
user rating: 5 of 5 (2)
Arc'teryx Rho LT Zip Base Layer Top
$89 - $119
user rating: 5 of 5 (2)
Marmot Midweight Bottom Base Layer Bottom
$25
user rating: 5 of 5 (2)
Patagonia Merino 2 Lightweight Crew Base Layer Top
$37 - $90
user rating: 5 of 5 (2)
Patagonia Capilene 4 Expedition Weight Zip-Neck Base Layer Top
$49 - $99
user rating: 5 of 5 (2)
Patagonia R1 Pants Base Layer Bottom
$44 - $99
user rating: 5 of 5 (2)
SmartWool Midweight Zip T Base Layer Top
$42 - $100
user rating: 5 of 5 (2)
Stoic Alpine Merino 150 Crew - Long-Sleeve Base Layer Top
$43
user rating: 4.5 of 5 (3)
SmartWool Microweight Crew Base Layer Top
$40 - $79
user rating: 4.5 of 5 (3)
SmartWool Microweight Tee Base Layer Top
$56 - $75
user rating: 5 of 5 (1)
Icebreaker 260 Midweight Tech Top Base Layer Top
$38 - $66
user rating: 5 of 5 (1)
Icebreaker Oasis Long Sleeve Crewe Base Layer Top
$45 - $100
user rating: 5 of 5 (1)
Patagonia Capilene 2 Lightweight Crew Base Layer Top
$20 - $49
user rating: 5 of 5 (1)
Ibex Balance Briefs Base Layer Bottom
$24 - $29
user rating: 5 of 5 (1)
Polarmax Tech Silk Crew Base Layer Top
$20
user rating: 5 of 5 (1)
SmartWool Midweight Crew Base Layer Top
$27 - $95
user rating: 5 of 5 (1)
Patagonia Capilene 1 Silkweight Scoop Base Layer Top
$45
user rating: 5 of 5 (1)
SmartWool Midweight Turtleneck Base Layer Top
$54 - $100
user rating: 5 of 5 (1)
Helly Hansen Fly Pant Base Layer Bottom
$22 - $39
user rating: 5 of 5 (1)
Terramar Hot Totties Grid Fleece Tights Base Layer Bottom
$27 - $28
user rating: 5 of 5 (1)
Stoic Merino 200 Boxer Brief Boxers, Briefs, Bikini
$41
user rating: 5 of 5 (1)
SmartWool NTS Mid 250 Bottom Base Layer Bottom
$57 - $100
user rating: 5 of 5 (1)
Marmot Midweight Crew LS Base Layer Top
$23 - $44
user rating: 5 of 5 (1)
Patagonia Capilene 3 Midweight Bottoms Base Layer Bottom
$18 - $55
user rating: 4 of 5 (4)
SmartWool Lightweight Zip T Base Layer Top
$60 - $99
user rating: 4.5 of 5 (1)
Icebreaker 150 Ultralite LS Atlas Base Layer Top
$45
user rating: 4.5 of 5 (1)
SmartWool Microweight Bottom Base Layer Bottom
$43 - $80
user rating: 4.5 of 5 (1)
Patagonia Capilene 2 Lightweight T-Shirt Base Layer Top
$19 - $45
user rating: 4.5 of 5 (1)
Icebreaker Anatomica Brief Boxers, Briefs, Bikini
$30 - $32
user rating: 4.5 of 5 (1)
SmartWool Midweight Funnel Zip Base Layer Top
$80 - $114
user rating: 4.5 of 5 (1)
Kenyon Power Stretch Baselayer Bottoms Base Layer Bottom
$28 - $44
user rating: 4.5 of 5 (1)
Patagonia Merino 3 Midweight Crew Base Layer Top
$57 - $115
user rating: 4.5 of 5 (1)
Icebreaker GT 200 L/S Chase Zip Base Layer Top
$77
user rating: 4 of 5 (2)
SmartWool Midweight Bottom Base Layer Bottom
$47 - $95
user rating: 4 of 5 (1)
SportHill Northwind Unders Boxers, Briefs, Bikini
$36
user rating: 4 of 5 (1)
Stoic Breathe Composite Bottom Base Layer Bottom
$29 - $36
user rating: 4 of 5 (1)
ExOfficio Give-N-Go Lacy Full Cut Brief Boxers, Briefs, Bikini
$14
user rating: 4 of 5 (1)
Under Armour Original Series 9-inch Boxerjock Boxers, Briefs, Bikini
$20
user rating: 4 of 5 (1)
Ibex Zepher Zip T-Neck Base Layer Top
$74 - $79
user rating: 4 of 5 (1)
Patagonia Merino 2 Lightweight T-Shirt Base Layer Top
$35 - $80
user rating: 4 of 5 (1)
Icebreaker 200 Lightweight Legging Base Layer Bottom
$48 - $59
user rating: 3 of 5 (2)
Avalanche Wear Mogul Pant Base Layer Bottom
$28
user rating: 2.5 of 5 (1)
Terramar Hot Totties Fleece Heavy Footy Performance Leggings Base Layer Bottom
$10
Icebreaker Tech Long Sleeve Crewe Base Layer Top
$66
Icebreaker BodyFit 200 Oasis Printed Base Layer Top
$60 - $69
Terramar Thermawool Pant Base Layer Bottom
$36
REI Midweight Space Dye Tights Base Layer Bottom
$47
Sugoi SubZero Tight Base Layer Bottom
$80
Icebreaker Oasis Long Sleeve Crewe Slopes Base Layer Top
$51
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