Clothing · Subcategory
Ultralight Baselayers
The 95 baselayers we track, from 9 brands — sorted so the best-rated, lightest options rise to the top. Compare spec weights and prices side by side.
Smartwool · Baselayers
Merino Bikini Women's
0.7 oz$35
Arms of Andes · Baselayers
Women's Alpaca Boyshort Panties by Arms of Andes
1.2 oz$52
Ultra Gam · Baselayers
Arm Sleeves/Warmers by Ultra Gam
1.3 oz$16
éclipse Sun Products · Baselayers
Sun Sleeves by éclipse Sun Products
1.3 oz$37
Yonderwear · Baselayers
The Yonderpair Women's Underwear by Yonderwear
1.4 oz$34
BRANWYN · Baselayers
Merino Wool Hipster Underwear by BRANWYN
1.6 oz$40
Ridge Merino · Baselayers
Women's Ridge Boy Short Underwear by Ridge Merino
1.8 oz$35
BRANWYN · Baselayers
Merino Wool Boyshort Underwear by BRANWYN
1.9 oz$42
Lightheart Gear · Baselayers
Undershorts
2.0 oz$30
BRANWYN · Baselayers
Merino Wool Bralette by BRANWYN
2.2 oz$52
Arms of Andes · Baselayers
Men's Alpaca Wool Boxer Briefs by Arms of Andes
2.3 oz$52
Arms of Andes · Baselayers
Women's Alpaca Wool Sports Bra by Arms of Andes
2.4 oz$70
Ridge Merino · Baselayers
Men's Ridge Boxer Briefs by Ridge Merino
2.5 oz$36
Smartwool · Baselayers
Intraknit Boxer Brief Men's
2.5 oz$55
Arc'teryx · Baselayers
Sunna Crew Shirt SS Women's
2.6 oz$70
Outdoor Research · Baselayers
Echo Boxer Briefs Men's
2.6 oz$36
Smartwool · Baselayers
Merino Blend Bralette Women's
2.8 oz$70
Brynje · Baselayers
Men's Super Thermo Boxer with Windcover by Brynje
2.9 oz$60
Smartwool · Baselayers
Merino Boxer Brief Men's F25
3.2 oz$50
Smartwool · Baselayers
Merino Boxer Brief Men's
3.2 oz$50
Brynje · Baselayers
Women's Super Thermo Long Sleeve Shirt Baselayer with Inlay by Brynje
3.4 oz$85
Brynje · Baselayers
Women's Super Thermo T-Shirt Baselayer with Inlay by Brynje
3.4 oz$70
Brynje · Baselayers
Super Thermo T-Shirt Baselayer with Inlay by Brynje
3.5 oz$70
Zpacks · Baselayers
Zpacks Octa Fleece Thermal Bottoms
3.5 oz$100
Outdoor Vitals · Baselayers
Highline Thermal Leggings
3.5 oz$85
Brynje · Baselayers
Women's Wool Thermo Long Sleeve Baselayer with Inlay by Brynje
3.7 oz$120
Arc'teryx · Baselayers
Cormac Crew Neck Shirt SS Men's S26
3.9 oz$56
Ridge Merino · Baselayers
Women's Send-it Seamless Sports Bra by Ridge Merino
3.9 oz$60
Outdoor Research · Baselayers
Echo Hoodie Women's
4.0 oz$85
Outdoor Research · Baselayers
Echo Hoodie Men's
4.0 oz$85
Smartwool · Baselayers
Intraknit™ Racerback Bra Women's
4.6 oz$80
Arc'teryx · Baselayers
Sunna Hoody Women's
4.6 oz$90
Brynje · Baselayers
Super Thermo Long Sleeve Shirt Baselayer with Inlay by Brynje
4.6 oz$85
Brynje · Baselayers
Men's Super Thermo Mesh Baselayer Pants by Brynje
4.7 oz$85
WŪRU Wool Co. · Baselayers
Women's Merino Wool 7/8 Tech Baselayer Pant 2.0
4.8 oz$115
BRANWYN · Baselayers
Merino Wool Racerback Sports Bra by BRANWYN
4.8 oz$85
Arc'teryx · Baselayers
Rho Bottom Women's
4.9 oz$100
Arc'teryx · Baselayers
Cormac Crew Neck Shirt LS Men's S26
4.9 oz$64
Arc'teryx · Baselayers
Cormac Crew Neck Shirt LS Men's
4.9 oz$80
Brynje · Baselayers
Wool Thermo Long Sleeve Baselayer with Inlay by Brynje
4.9 oz$120
Brynje · Baselayers
Wool Thermo Mesh Baselayer Pants by Brynje
4.9 oz$120
Brynje · Baselayers
Women's Wool Thermo Zip Polo by Brynje
4.9 oz$125
WŪRU Wool Co. · Baselayers
Men's Merino Wool Tech 7/8 Baselayer Pant 2.0
5.1 oz$115
Arc'teryx · Baselayers
Ionia Merino Wool Arc'Word Shirt SS Men's
5.3 oz$90
Alpine Fit · Baselayers
Women's Rendezvous Ridge Long Sleeve by Alpine Fit
5.4 oz$129
Arc'teryx · Baselayers
Rho Crew Neck LS Women's
5.5 oz$100
Arc'teryx · Baselayers
Ionia Merino Wool Shirt SS Men's
5.5 oz$90
Patagonia · Baselayers
Capilene Midweight Bottoms Women's
5.5 oz$89
Kifaru International · Baselayers
Spike Merino SS Crew
5.5 oz$70
Brynje · Baselayers
Women's Super Thermo Mesh Baselayer Pants by Brynje
5.5 oz$85
XOSKIN · Baselayers
Men's XOUNDERWEAR Seamless Liner Shorts by XOSKIN
5.5 oz$37
Brynje · Baselayers
Women's Wool Thermo Mesh Baselayer Pants by Brynje
5.6 oz$120
Patagonia · Baselayers
Capilene Midweight Bottoms Men's S26
5.8 oz$89
Arc'teryx · Baselayers
Cormac Hoody Men's
6.0 oz$90
Ridge Merino · Baselayers
Women's Ridge Hipster Brief by Ridge Merino
6.0 oz$30
Melanzana · Baselayers
Merino Base Hoodie
6.3 oz$107
Brynje · Baselayers
Wool Thermo Zip Polo Baselayer with Inlay by Brynje
6.3 oz$140
Ridge Merino · Baselayers
Women's Aspect High Neck Top by Ridge Merino
6.3 oz$80
Ridge Merino · Baselayers
Women's Aspect 1/4 Zip Top by Ridge Merino
6.3 oz$80
Arc'teryx · Baselayers
Cormac Heavyweight Hoody Men's
6.5 oz$100
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