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Smartwool Merino Sport
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- SmartwoolMerino Sport Ultralite T-Shirt - Women's$46.97Save 32%compared to $70.00Members use code LABORDAY26 to save an extra 20% thru 9/7.(44)44 reviews with an average rating of 4.0 out of 5 starsREI OUTLET
- SmartwoolActive Ultralite T-Shirt - Men's$70.00(33)33 reviews with an average rating of 3.6 out of 5 stars
- SmartwoolActive BeanieTop Rated$25.00(33)33 reviews with an average rating of 4.7 out of 5 stars
- SmartwoolMerino Sport 120 Long-Sleeve Shirt - Men's$85.00(11)11 reviews with an average rating of 3.6 out of 5 stars
- SmartwoolActive Ultralite V-Neck T-Shirt - Women's$70.00(30)30 reviews with an average rating of 3.8 out of 5 stars
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Related Expert Advice articles
Which material is best?
- Wool: highly moisture-wicking and odor-resistant
- Synthetic: durable and less expensive
- Silk: soft and lightweight for casual activities
Match the temp to the trek
- Lightweight layers: best for moderate to cool temperatures
- Midweight layers: best for cold temperatures
- Heavyweight layers: best for below-freezing temperatures
Find your fit
- Must be close to skin to efficiently wick sweat; should fit comfortably snug
- Base layer is for moisture control; your mid layer is for warmth
Choose a fabric type
- Wool: Stays warm when wet, resists odor and wicks moisture
- Synthetic (nylon, polyester or acrylic): Ideal for sensitive skin, trap warmth and wick moisture.
How much cushioning do you want?
- No cushioning: Best for tighter-fitting performance boots that have a tighter fit or maximum ground feel
- Light cushioning: Shin padding with minimal cushioning on the balls of the feet, often with reinforced toes and heels
- Medium cushioning: Added padding for warmth and impact absorption; ideal for cold conditions or looser-fitting boots
Length
- Knee high: Most socks for skiing and snowboarding go up to the knees to help protect from shin bang
- Crew: Cross-country skiers and snowshoers may prefer shorter hiking socks
Learn what clothing and gear you’ll need to wear skiing or snowboarding. We cover the basics: from underwear to jacket and from head to toe.
We list our 8 favorite socks for hiking, backpacking, kids, compression and more.
Read full article: The 8 Best Hiking Socks of 2026: Staff Picks
Get tips on how to wash and care for your sports bra to extend its life.
Select your sock height
- No-show: Minimal protection; best with low-cut footwear like trail-running or light hiking shoes
- Ankle: Covers your ankle bone; best for low- to mid-cut shoes and boots
- Crew: Extends above ankle; good for boots or shoes
- Knee-high: Provides warmth and protection against high-cut boots
Choose your preferred cushioning level
- None: Ultralight; ideal for hot weather or as sock liners
- Light: Thin cushioning; better for warm conditions
- Medium: Targeted cushioning in the heel and ball; ideal for moderate to cold conditions
- Heavy: Thickest and most cushioned; best for long trips, rugged terrain and cold
Select a fabric
- Choose moisture-wicking, quick-drying materials like wool, polyester or nylon
- Spandex adds stretch to prevent bunching
- Cotton isn't recommended as it absorbs moisture and dries slowly
Find your fit
- Choose based on your foot size, not shoe size.
- If you're between sizes, size down to avoid excess material that can bunch up and cause blisters.
- Socks should feel snug but not tight, and the sock's heel cup should naturally line up with your heel.


















