Since launching the AIR 70, this question as come up a fair bit:
What's the difference between the Half Zip Pullover Ultralight 115 and the new Half Zip Pullover AIR 70?
The good news is there isn't a wrong answer.
Both are built with our custom GOATgrid fabric. Both are lightweight, breathable, incredibly comfortable, and designed to disappear into your adventure kit until you need them.
The real difference comes down to conditions and how you like to use your layers.
What Makes GOATgrid Different?
Before diving into the comparison, it's worth understanding what both products share.
GOATgrid is SkyGOAT's custom microgrid fleece made from recycled polyester. The unique grid structure helps trap warmth when you need it while allowing excess heat and moisture to escape during activity.
The result is a fabric that's surprisingly warm for its weight, highly breathable, moisture wicking, and comfortable enough to wear all day.
Whether you're hiking, biking, traveling, camping, fishing, paddling, or simply enjoying a cool evening outdoors, GOATgrid helps regulate temperature without feeling bulky or restrictive.
Half Zip Pullover Ultralight 115
The Do Everything Layer
The Half Zip Pullover Ultralight 115 is built with 115 gsm GOATgrid fabric, making it one of the most versatile pieces in the SkyGOAT lineup.
It provides a bit more warmth and protection than the AIR 70 while remaining exceptionally breathable and lightweight.
Many customers describe it as the layer they forget they're wearing. It feels substantial enough to take the chill off a cool morning but light enough to stay comfortable when the temperature rises.
Best Uses
- Hiking and backpacking
- Travel and road trips
- Cool summer mornings
- Mountain summits
- Shoulder season adventures
- Campfire evenings
- Everyday wear
Why People Love It
The Ultralight 115 hits a sweet spot. It's warm enough to serve as your primary layer during cool conditions while remaining breathable enough for active pursuits.
If you're looking for one piece that can handle the widest range of temperatures and activities, the Ultralight 115 is often the best choice.
Half Zip Pullover AIR 70
The Featherweight Specialist
The AIR 70 takes GOATgrid to a whole new level.
Built with our all new 70 gsm GOATgrid fabric, it's the lightest GOATgrid layer we've ever created. In fact, it's so breathable you can literally see through it.
The goal wasn't to create a warmer layer. The goal was to create a layer you could wear during high output activities and warm weather adventures without overheating.
The result feels almost weightless while still providing light insulation, sun protection, and just enough coverage when conditions change.
Best Uses
- Trail running
- Mountain biking
- Fast hiking
- Warm weather backpacking
- Alpine starts
- Sun protection
- High output adventures
Why People Love It
The AIR 70 offers an unusual combination of comfort and breathability. It helps take the edge off cool breezes and early morning starts without trapping heat as the day warms up.
For people who tend to run hot or spend long days moving fast outdoors, it can quickly become a favorite.
Side by Side Comparison
| Feature | Ultralight 115 | AIR 70 |
|---|---|---|
| GOATgrid Weight | 115 gsm | 70 gsm |
| Warmth | More | Less |
| Breathability | Excellent | Maximum |
| Wind Resistance | More | Less |
| Packability | Excellent | Exceptional |
| Best Temperature Range | Cool to Mild | Mild to Warm |
| Best For | Everyday versatility | High output performance |
Which One Should You Choose?
Choose the Ultralight 115 if:
- You want one layer for the widest variety of conditions.
- You frequently encounter cool mornings and evenings.
- You want a balance of warmth and breathability.
- You love comfortable layers for both adventure and everyday wear.
Choose the AIR 70 if:
- You prioritize maximum breathability.
- You spend most of your time in warmer temperatures.
- You run hot during activity.
- You want the lightest GOATgrid layer possible.
The SkyGOAT Answer
Many of us at SkyGOAT own both.
The Ultralight 115 often gets the call when temperatures are cooler, weather is uncertain, or versatility is the priority.
The AIR 70 comes out when summer arrives, the pace picks up, and breathability becomes king.
Both deliver the same GOATgrid comfort people have come to expect from SkyGOAT. Both are the perfect alternative compared to Alpha Direct products which are delicate and have no wind resistance.
The only question is where your next adventure will take you.
Half-Zip Pullover Ultralight 115
