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["__accessories","__all","__base_layer","__mens","__new","size_2xl","size_lrg","size_med","size_sml","size_xlg","size_xsm"]
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M. LIGHTWEIGHT MERINO SS BASE - BLACK
A 170 gsm short sleeve base made from a 50/50 blend of RWS-certified merino wool and lightweight polyester for natural breathability, moisture-wicking, and odor resistance combined with durability and exceptional comfort.
Color:
SIZE:
XSM
Size chart
Men's Sizing Chart
Size Waist (in) Chest (in) Weight (lbs) Height ('ft "in)
XSM 26-28"
33-36"
120-145
5'3"-5'8"
SML 29-31"
35-38"
135-160
5'3"-6'2"
MED 31-33"
38-40"
155-175
5'4"-6'2"
LRG
34-36"
40-42"
170-190
5'8"-6'4"+
XLG 37-39"
42-44"
185-210
5'9"-6'4"+
2XL 40-42"
44-46"
210-255
5'9"-6'5"+
3XL 42-44"
46-48"
235-255
5'9"-6'5"+
4XL+ 44"+
48"+
255+
5'9"-6'5"+
For all size charts including definitions of fit, please go here.
Only 3 left | Ships in 1 business day
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Free Shipping over $99+ | Free 30-day Returns. Details
SKU: 1010N78BLK
ULTIMATE BASE The Lightweight Merino Long Short Sleeve Base delivers easygoing performance in a minimalist design. Made from a premium blend of RWS-certified merino wool and lightweight polyester, it offers natural breathability, moisture-wicking, and odor resistance, while the polyester enhances durability and shape retention. Designed for versatile layering in transitional or cooler weather, this long sleeve keeps you cool, dry, and comfortable through casual rides to intense training. With its trim silhouette and barely-there feel, it’s the ultimate go-to for mild to chilly days when you want performance without the bulk.
Next-to-skin fit: Short sleeve base layer made to fit next-to-skin.
Aero: Next-to-skin fit throughout
Race: Form-fitting with just a bit of room
Club: Athletic fit with room in the chest and torso
Casual: T-shirt style fit for on and off the bike
Premium Merino Blend: Crafted from a 170 GSM 50/50 blend of merino wool and lightweight polyester for a high-performance, next-to-skin base layer.
Fabric Merino Blend: 50% Merino Wool / 50% Lightweight Polyester, 170 GSM, UPF 35
Care Machine wash with mild detergent in cold or warm water immediately after use or air out to avoid garment developing "the funk". Never leave in your bag or pile into a corner until next Tuesday. Hang dry after washing.
Learn more about extending the life of your garment here.
AMERICAN MADE
Made here in California since 1986
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