Wore this under a shell in 5-degree weather and never felt cold spots. Dried incredibly fast when we took a break.
Summit GearaccessoriesUSD 74.99In stock
Thermal Base Layer Top
4.7 (3 reviews)USD 59.99
Thermal grid-fleece base layer traps heat without bulk and dries quickly in intense conditions.
Offers & savings (3)
- Save $15 in the layering sale
- Save USD 15.00 off the USD 74.99 list price
- Free shipping on orders over USD 75.00
🚚 Ships in 1-2 business days↩ Free returns within 30 days of delivery🛡 2-year limited warranty from Summit Gear
About this item
The unique grid-fleece construction creates air pockets that insulate while remaining breathable, so you stay warm without overheating during activity. Flatlock seams eliminate chafe, and the tapered fit layers cleanly under shells without bunching.
Specifications
| material | Merino 190 gsm |
|---|---|
| care | Machine wash cold, dry flat |
Customer reviews
The insulation is excellent and it definitely breathes. Size up if you like a roomier fit under your jacket.
Tested it in rainy spring mountaineering and the grid fleece kept me warm even when damp. Flatlock seams prevented any chafing.