The lightest Clothing - Base Layer, ranked by weight

We ranked 25 products in the Clothing - Base Layer category by real measured weight. Here are the 25 lightest — the Patagonia Capilene Cool Daily Crew leads at just 113g.

113g
Lightest
191g
Average
337g
Heaviest
25
Compared
# Product Weight
1
Patagonia
Capilene Cool Daily Crew
113g
0.113 kg · 0.25 lbs
2
Smartwool
Merino 150 Base Layer Short Sleeve
133g
0.133 kg · 0.29 lbs
3
Haglofs
L.I.M Mid Tee
135g
0.135 kg · 0.30 lbs
4
Patagonia
Capilene Cool Trail Shirt
140g
0.140 kg · 0.31 lbs
5
Rab
Merino+ 120 Tee
140g
0.140 kg · 0.31 lbs
6
Icebreaker
150 Zone Long Sleeve
150g
0.150 kg · 0.33 lbs
7
Arc'teryx
Rho LT Crew
155g
0.155 kg · 0.34 lbs
8
Fjallraven
Abisko Wool Tee
155g
0.155 kg · 0.34 lbs
9
Smartwool
Merino 150 Base Layer Top
163g
0.163 kg · 0.36 lbs
10
Icebreaker
200 Oasis Leggings
175g
0.175 kg · 0.39 lbs
11
Icebreaker
200 Oasis Crew
180g
0.180 kg · 0.40 lbs
12
Icebreaker
Merino 200 Oasis Long Sleeve Crewe
185g
0.185 kg · 0.41 lbs
13
Patagonia
Capilene Midweight Crew
185g
0.185 kg · 0.41 lbs
14
REI Co-op
Merino Wool Base Layer Crew
190g
0.190 kg · 0.42 lbs
15
Montbell
Merino Wool Tights
200g
0.200 kg · 0.44 lbs
16
Norrona
Wool round neck
200g
0.200 kg · 0.44 lbs
17
Smartwool
Intraknit Merino Top
200g
0.200 kg · 0.44 lbs
18
Icebreaker
Merino 200 Oasis Crew Long Sleeve
215g
0.215 kg · 0.47 lbs
19
Icebreaker
Merino 200 Oasis Crewe (men's M)
219g
0.219 kg · 0.48 lbs
20
Icebreaker
Merino 200 Oasis LS Crew
220g
0.220 kg · 0.49 lbs
21
Icebreaker
Merino 200 Oasis LS Crewe
220g
0.220 kg · 0.49 lbs
22
Icebreaker
260 Tech Long Sleeve
230g
0.230 kg · 0.51 lbs
23
Smartwool
Merino 250 Crew
270g
0.270 kg · 0.60 lbs
24
Icebreaker
150 Zone Long Sleeve Crewe
274g
0.274 kg · 0.60 lbs
25
Icebreaker
Merino 200 Oasis Long Sleeve Crew
337g
0.337 kg · 0.74 lbs

How we rank the lightest Clothing - Base Layer

Every item on this page comes from the HikeLoad gear weight database, sorted purely by manufacturer-listed weight in grams — no sponsored placements. For ultralight and lightweight backpacking, your clothing - base layer is one of the easiest places to shave grams without sacrificing function, so seeing the full range side by side makes it easy to spot the best weight-to-need trade-off.

The 25 products in this category range from 113g up to 337g, with an average of 191g. Tap any item to see its full weight breakdown in kilograms and pounds, then add it to your kit in the free HikeLoad gear planner to see how it affects your total pack weight.

Lightest pick
Patagonia
Capilene Cool Daily Crew
113g
0.113 kg · 0.25 lbs
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