Base Layers

Browse and compare the lightest Base Layers for ultralight backpacking. Sort by weight, filter by brand, and find the best Clothing options for your loadout.

91 productsLightest46 gMedian166 gHeaviest440 g

MetricImperial

Brand

–g

	Product	Weight	vs Median
	finetrackDry Layer Basic T	46 g	-72%
	FinetrackDry Layer Basic T (Men's)	46 g	-72%
	IcebreakerMerino Blend 75 Cool-Lite Featherlight Short Sleeve Crewe	55 g	-67%
	FinetrackElemental Layer Cool Short Sleeve Crew	72 g	-56%
	PatagoniaCapilene Cool Lightweight Shirt	74 g	-55%
	OdloActive F-Dry Light Eco Base Layer T-Shirt	76 g	-54%
	PatagoniaCapilene® Lightweight Bottoms	89 g	-46%
	DecathlonMT500 Merino Wool T-Shirt	91 g	-45%
	PatagoniaMen's Capilene® Cool Ultra Hoody	94 g	-43%
	DecathlonMT500 Merino Wool Mountain Trek Tank Top	98 g	-41%
	ForclazMerino Top for Mountain Trekking Women's MT500	98 g	-41%
	PatagoniaCapilene® Cool Lightweight Shirt	98 g	-41%
	PatagoniaCapilene® Lightweight Crew 2 variants	99 g	-40%
	UNIQLOAIRism Crew Neck T-Shirt	99 g	-40%
	REI Co-opLightweight Base Layer Tights	122 g	-26%
	PatagoniaCapilene® Cool Daily Shirt	128 g	-23%
	Arc'teryxCormac Crew Neck Shirt LS	135 g	-18%
	IcebreakerMerino Blend 125 ZoneKnit	135 g	-18%
	Yamatomichi100% Light Merino Long Sleeve	135 g	-18%
	PatagoniaLong-Sleeved Capilene® Cool Merino Blend Shirt	139 g	-16%
	PatagoniaMen's Capilene® Cool Merino Blend Shirt	139 g	-16%
	Helly HansenHH LIFA Pant	142 g	-14%
	BrynjeSuper Thermo Shirt w/ Shoulder Inlay	143 g	-14%
	RabDryflo Tee	143 g	-14%
	DecathlonForclaz Trek 500 Merino Wool T-Shirt (Merino Resist)	145 g	-12%
	UYNEvolutyon Xtreme UW Pants Long	147 g	-11%
	BrynjeWool Thermo Light Zip-Polo 3/4 Neck	150 g
	FUSIONTechnical Merino 150 LS	150 g
	ZpacksOcta Camp Pants	151 g
	PatagoniaCapilene® Midweight Bottoms	158 g
	Arc'teryxCormac Heavyweight Shirt LS	160 g
	FjällrävenAbisko Day Hike Half Zip	160 g
	The North FaceMen's Summit Series Pro 120 Crew	160 g
	Arc'teryxRho	162 g
	Ridge MerinoMen's Pursuit Ultralight Long Sleeve Merino Shirt	162 g
	IcebreakerMerino 175 Everyday	165 g
	AclimaWoolNet	166 g
	Mountain HardwearCrater Lake™ Hoody	168 g
	IcebreakerMerino 150 Anatomica Tank	171 g
	IcebreakerMerino Blend 125 ZoneKnit Long Sleeve Crewe Thermal Top	173 g
	PatagoniaCapilene Cool Sun Hoody	176 g
	PatagoniaCapilene® Midweight Crewneck	176 g
	IcebreakerMerino 200 Oasis Thermal Leggings	178 g
	PatagoniaCapilene Cool Daily Hoody	179 g
	PatagoniaMen's Capilene® Cool Daily Hoody	179 g
	Arc'teryxRho LT Bottom	180 g
	SmartwoolWomen's Intraknit Thermal Merino Base Layer Crew	181 g
	DecathlonForclaz MT500 Merino Wool Legging Baselayer	182 g
	RabForce Hoody	187 g
	Ridge MerinoMen's Aspect Midweight Merino Wool Base Layer Bottoms	187 g
	ForclazMT500 Merino Wool Base Layer Tights	190 g
	Kari TraaSmekker Long Sleeve Baselayer	190 g
	UrbergLyngen Merino T-Shirt 2.0	202 g
	IcebreakerMerino 200 Oasis Long Sleeve Crewe Thermal Top	206 g
	PatagoniaMen's Capilene® Thermal Weight Baselayer Zip-Neck Pullover	206 g
	REI Co-opMerino 185 Base Layer Bottoms	210 g
	SimondMT500 Long-sleeve 100% Merino Wool T-shirt	210 g
	Icebreaker200 Oasis Leggings with Fly	220 g
	ForclazTrek 500 Long Sleeved Merino Wool Hiking T-Shirt	221 g
	Helly HansenLIFA® Merino Midweight Crew Base Layer	221 g
	ForclazMT500 Merino Wool Long-sleeve Shirt	222 g
	MeriwoolMerino 250 Base Layer Bottom	224 g
	SmartwoolClassic Thermal Merino Base Layer Bottom	227 g
	SmartwoolClassic Thermal Merino Base Layer Crew	236 g
	icebreakerMerino 260 Tech Thermal Leggings	240 g
	ForclazTrek 500 Merino Wool Backpacking Tights	247 g
	SmartwoolClassic Thermal Merino Crew Base Layer Top	275 g
	SmartwoolMerino 250 Baselayer Crew	275 g
	PatagoniaR1® Air Zip-Neck	289 g
	SmartwoolClassic Thermal Merino Base Layer 1/4 Zip 2 variants	298 g
	ForclazMT900 Merino Wool Long-Sleeved Trekking T-Shirt	350 g
	WoolpowerCrew Neck 200	440 g
	DecathlonMerino Resist Short-Sleeved T-Shirt	—
	DecathlonMerino Resist Short-Sleeve T-Shirt	—
	DecathlonT-shirt Merino Resist	—
	DillingWomen's Merino Wool T-shirt	—
	ForclazBrassière en Laine Mérinos MT500	—
	FusionTechnical Merino 150 T-Shirt	—
	Helly HansenHH LIFA T-Shirt	—
	Kari TraaRose Long Sleeve Baselayer	—
	KUIUULTRA Merino 120 LT LS Hoodie	—
	KUIUULTRA Merino 120 LT SS Crew-T	—
	LobtreeBase Alpha™ Direct 90 Thermal Legging	—
	Macpac220 Merino Long Johns	—
	MacpacLyell 180 Merino T-Shirt	—
	MERIWOOLMerino 250 Base Layer Bottom	—
	OdloBlackcomb Eco Base Layer Bottoms	—
	PudollaActive Compression Running Tights	—
	RevolutionRaceDownhill Base Layer Pants	—
	UNIQLOHEATTECH T-Shirt	—
	UYNEvolutyon UW Shirt	—