Perform Tech+
Perform+ Longsleeve (Tundra)
Fabric and care
Ultra-light polyester. Machine wash cold, tumble dry low, no fabric softener.
Fit
True to size — tailored, not tight. Extended sleeve length and a dropped hem.
Shipping and returns
Free shipping on orders over $99. Ships in 2–3 business days. Returns accepted within 30 days, unworn with tags attached.
Why it holds up
Built for the field.
Most sun shirts get their UPF from a finish that washes out in a season. Ours is structural — the protection is in how the yarn is woven, so shirt number forty looks like shirt number one.
UPF 50+ protection
Blocks 98% of harmful UV rays. Woven in, not coated on.
Perform Tech+ fabric
Ultra-light polyester. Sweat-wicking and fast-drying.
No-chafe seams
Flat-locked and routed clear of pack load points.
Athletic cut
True to size — tailored, not tight. S through 3XL.
Size & fit
Order your normal size.
Perform+ runs true to size with a tailored athletic cut — close through the chest and shoulders without pulling. If you are between sizes or want room for a base layer underneath, size up.
- True to size. Order the size you normally wear.
- Tailored, not tight. Close through the chest without pulling.
- Long sleeves. Cut to stay put under a pack strap.
Model is 6'1", 195 lb, wearing a large.
Find your size
A guide, not a guarantee. Check the measurements below against a shirt you already own if you want to be certain.
| Size | Chest | Body length | Sleeve |
|---|---|---|---|
| S | 34-3686-91 | 2769 | 33.585 |
| M | 38-4097-102 | 2871 | 34.588 |
| L | 42-44107-112 | 2974 | 35.590 |
| XL | 46-48117-122 | 3076 | 36.593 |
| 2XL | 50-52127-132 | 3179 | 37.595 |
| 3XL | 54-56137-142 | 3281 | 38.598 |
Measurements are of the garment laid flat, not the body. Allow a half inch either way.
