Performing as midlayer and standalone across a broad range of activities and output levels, the iconic Atom LT is an Arc‘teryx mainstay. Over time, we have refined the design to elevate performance, improve durability and extend its versatility. Its Coreloft™ Compact insulation retains heat when wet and withstands repeated packing and unpacking. Light, soft and durable, the Tyono™ 20 face fabric resists wind and weather, and stretch fleece side panels improve ventilation and freedom of movement.
Redesign includes an update to the cuff construction for easier on/off and layering, an updated material package for enhanced durability, updated fit, and a dope dyed liner.
Versatile synthetic insulated mid layers with a high degree of weather resistance.
High performance, minimalist design that is durable for its weight.
Versatile high performance designs for diverse activities and conditions.
Man-made insulation with quick dry times, durability and retains warmth when damp.
- Moisture-resistant outer face fabric
- Compressible and packable
- Wind resistant
DESIGN & FIT
- Trim fit for base layer or light mid-layer use
- Mid-height collar is insulated and fleece-lined, layers well
CUFF & SLEEVES CONFIGURATION
- Stretch-knit cuffs
- Improved cuff construction increases durability, eases layering and removal
- Two hand pockets with hidden zippers
- Internal chest pocket with zip
- DWR (Durable Water Repellent) finish repels moisture
- Resilient Coreloft™ Compact 60 insulation retains loft
- Performance stretch fleece side panels give ventilation
- Light, soft Tyono™ 20 is air permeable
- Articulated elbows
- Gusseted underarms for mobility and comfort
ZIPPERS & FLY CONFIGURATION
- No Slip Zip™ front zipper
- Custom TPU zipper pulls
- Drop back hem
- Laminated hem
- Dual lower hem adjusters
- Dope dyed lining fabric
- Contains materials that meet the bluesign® criteria
- Dope Permeair: 20 - 100% nylon
- Stretch fleece: 94% polyester, 6% elastane
- Coreloft: Compact (60 g/m² ) insulation. Highly crimped, multi-denier siliconized polyester yarn that has undergone a special process which reduces the thickness of the material by 50%, without reducing its insulation value by the same amount. Lightweight, breathable, thermally efficient 100% polyester fibre.
- Tyono: 20 denier shell with DWR treatment - 100% nylon
- Machine wash in cold water on a gentle cycle
- Do not bleach
- Tumble dry on low heat on a delicate setting
- Do not iron
- Do not wring
- Do not dry clean
WEIGHT: 290 gm
FIT: Trim fit, Hip Length, Centre back length: 67 cm / 26 in
ACTIVITY: All Round
YOUR BODY MEASUREMENTS IN CENTIMETRES:
Note: If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.