The AAGO Merino Wool Thermal Shirt (unisex) is a soft, durable base/mid-layer that stays warm even when damp, breathes efficiently, and resists odor naturally. A polyester-reinforced smooth outer face improves abrasion resistance, while the merino terry inner surface boosts insulation. Flatlock seams, extended back length, thumb holes, and a high zip collar ensure comfort and quick temperature control in demanding outdoor and field use.
s, BRITTA is built for dependable everyday field and duty use.
AAGO Merino Wool Thermal Shirt (Unisex) is a technical base or mid-layer built for cold, wet, and constantly shifting environments. It’s a clean, purpose-driven work layer: soft against skin, durable on the outside, and shaped to move naturally with the body. Whether you’re on a long hike, working outdoors, training, or building a layered field system, AAGO keeps warmth and moisture under control without restricting movement.
At its core is merino wool — a material trusted for real-world performance. Merino retains warmth even when damp, breathes to prevent overheating during high output, and naturally resists odor thanks to antibacterial properties. That makes AAGO especially valuable for multi-day use where washing isn’t always possible and consistent comfort matters.
The fabric is built as a dual-surface structure. The smooth outer face includes polyester to increase abrasion resistance, extend service life, and reduce pilling under heavy wear. The inside uses a natural merino terry knit that feels soft against skin and traps warm air efficiently, maintaining insulation even as conditions turn wet or your body sweats.
Ergonomics come from real movement logic. Multiple pattern cuts and low-profile flatlock seams keep the shirt close to the body without chafing and make it ideal under layered clothing. A extended back panel protects the lower back during bending or pack carry. Thumb holes at the cuffs keep sleeves locked in place and make mid-layer dressing smoother by preventing sleeve roll-up.
Cold protection is reinforced at the neck. A double-layer stand-up collar blocks wind and retains heat, while the high zip neck allows fast ventilation control when your pace changes. The front uses a 4 mm reversed-tooth zipper for comfort and durability without rubbing under the chin.
With a unisex fit and functional simplicity, AAGO is the kind of thermal shirt you put on once and trust for the whole day — or several days in a row.
Technical Specifications:
Key Features:
AAGO Merino Thermal Shirt – warmth that works quietly, even when conditions don’t.
