Engineered for top-tier performance across all seasons, the Smartwool Outdoor Merino Base Layer Women's Thermal Bottoms are an essential choice for any adventurer looking for high-quality comfort. These tights utilise an innovative wool/synthetic blend, perfectly pairing the natural performance of Merino wool with the engineered moisture-wicking power of COOLMAX EcoMade. This high-performance combination offers exceptional breathability and advanced temperature regulation, keeping you cool during intense uphill treks and warm when the conditions drop. Because the material naturally repels bacteria, it boasts excellent odour resistance, making these thermals ideal for multi-day hiking or camping trips. Along with this natural performance, the integration of eco-friendly synthetic fibres significantly boosts the garment's overall durability, ensuring it holds up against the friction of rugged outdoor exploration.

Boasting an ergonomic slim fit, these bottoms contour nicely against your silhouette, providing an optimal foundations layer without bunching under heavy shell trousers. Comfort is further maximised by flatlock seams and merrow stretch stitching, specialised techniques designed to prevent chafing and unlock a full range of unrestricted movement.

Key Features:

  • Premium Material Blend: A balanced wool/synthetic blend comprising 50% Merino wool and 50% COOLMAX EcoMade to deliver the absolute best of natural comfort and advanced moisture management.
  • Dynamic Microclimate Control: Engineered to offer supreme breathability alongside reliable temperature regulation, making these tights highly versatile across all seasons.
  • Natural Freshness: Capitalises on the inherent odour resistance of high-grade Merino wool, keeping your kit fresh across extended backcountry expeditions.
  • Long-Lasting Build: The specialised EcoMade synthetic fibres ensure enhanced structural durability and resistance to wear and tear.
  • Streamlined Silhouette: Designed with an active slim fit that follows the natural curves of the body for easy layering.
  • Chafe-Free Construction: Built with smooth flatlock seams to eliminate friction points against the skin.
  • Flexible Seaming: Incorporates merrow stretch stitching to enhance structural flexibility and guarantee complete freedom of movement.
Yes, they should fit snugly like second skin without restriction of movement. A close fit is necessary for the moisture-wicking property to work efficiently and provide temperature regulation.
If washed properly, it should retain its shape and size. Air dry them flat on a clean towel, or select the lowest heat and tumble dry settings. It is advisable to avoid extreme heat and harsh agitation to the prevent the wool fibres from felting. Fabric softeners and bleach may also permanently damage the wool fibres.

Brand : Smartwool

SKU: SMWL-SW003093

Model # : SW003093

Gender : Womens

Clothing Type : Bottoms

Materials : 50% Merino Wool |50% COOLMAX EcoMade Recycled Polyester

Free shipping on orders over $140 to Australia*
Shipping on small orders (under $140) only $9.95
Shipping on all orders to NZ only $9.95
Express shipping to Australia & NZ only $15

Standard Shipping (AU) – FREE on orders over $140 and $9.95 on orders under $140. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products).
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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