WarmFlex – Women’s High-Stretch Fleece-Lined Straight Pants

Meet the Beneunder Anti-Chafing Outdoor Pants — engineered for comfort, mobility, and long-lasting wear. Designed with a 3D Dynamic Waist System that adapts to your body’s movement, these pants prevent pressure and friction around the waist and hips. Crafted from four-way stretch fabric with thermal insulation and quick-dry performance, they keep you warm, dry, and unrestricted — whether hiking, traveling, or relaxing outdoors.

Highlights

• 3D Dynamic Waist System expands up to 2.5cm for adaptive comfort and chafe-free fit.
• High-stretch V panels relieve pressure when sitting or bending.
• Soft thermal fabric retains warmth down to -5°C without bulk.
• Four-way stretch & 97% elasticity offer full mobility for hiking and travel.
• Quick-dry mesh zones wick moisture and prevent visible sweat marks.
• Durable and shape-retaining, resists pilling and deformation after repeated washing.
• Straight-leg silhouette (~580g) delivers sleek, warm, and comfortable style.

Fabric / Placket Lining / Hood Lining 1 / Body Lining 1 / Sleeve Lining / Pocket Lining 1: 100% Nylon – smooth, durable, and wind-resistant for reliable protection and a refined matte finish.
Body Lining 2 / Back Yoke / Pocket Lining 2: 100% Polyester – soft, breathable, and easy to care for.
Filling: Body & sleeves – white duck down (90% down content) for exceptional loft and warmth; hood – 100% Polyester for lightweight comfort and shape retention.

• Free Shipping on all orders.
• 30-day Return: Feel free to send your item back within 30 days of receiving the product.
You can review our shipping and returns policy here.

Based on moderate activity with a basic inner layer; increase warmth for wind or humidity.
Recommended range: down to -5°C / 23°F