The SYNAPSE combines jacket-level warmth with the versatility of a shirt. Insulated with Primaloft® and crafted from durable stretch twill with a weather-resistant treatment, it’s rugged enough for the backcountry yet refined for downtown commutes. Thoughtful details include elongated Person Built™ pockets, ultra-soft handwarmer pockets, and a relaxed fit for all-day comfort.
Whether you're trekking through the wilderness or navigating city streets, the Synapse adapts to your needs. Lightweight insulation means it’s perfect for layering or wearing on its own.
Every detail is designed with the user in mind. Function first details such as multiple pockets, durable snaps and stretch fabric with high performance Primaloft® insulation.
With its DWR treatment and Primaloft® insulation, this shirt jacket will keep you warm and dry in unpredictable conditions.
Part shirt, part jacket—perfect for those who don’t like to be confined to a single category.
Classic insulated overshirt with handwarmer pockets, person built™ features and a functional fit providing enough room to accomodate the added volume of this insulated overshirt.
SPC/LST offers a 30-day return policy for items in original, unworn condition with tags and proof of purchase. Contact Hello@spclst.com to start a return.
See full shipping details here.
At SPC/LST, our Lifetime Warranty reflects our commitment to durability and craftsmanship. If your gear has a defect, we’ll repair or replace it. While normal wear and tear isn’t covered, we’re here to help extend its life. Your adventures deserve reliable gear.
| SIZE | CHEST (INCHES) | WAIST (INCHES) |
|---|---|---|
| Small | 38 - 40 | 29 - 31 |
| Medium | 40 - 42 | 31 - 33 |
| Large | 42 - 44 | 34 - 36 |
| X-Large | 44 - 46 | 36 - 38 |
Lightweight yet powerful insulation to keep you warm without the bulk.
Built tough for maximum durability, with a stretch that moves with you.
Built to last and withstand the toughest use, while making it easy to secure and access your goods.
Lightweight yet powerful insulation to keep you warm without the bulk.
