Full-length alpine style, waterproof protection and built-in winter grip – meet the Mammal Leah OC.
ARRIVING 1st OCTOBER 2026
The Mammal Leah OC combines a fresh, contemporary silhouette with the warmth and practical protection needed for serious winter weather. Designed in Italy, its full-length quilted nylon shaft is paired with durable PU nubuck around the foot, while a luxurious grey-tipped faux-fur collar completes the alpine look.
Leah is more versatile than a deep-winter snow boot. Its waterproof membrane makes it especially well suited to the British climate: dependable for icy winter days, but equally useful through wet autumn weather and cooler spring conditions when rain, puddles and muddy paths matter more than snow.
Inside, a soft Berber fleece lining, removable felt insole and HeatMX™ insulation rated to -30°C provide cosy warmth, cushioning and additional protection when temperatures fall.
When surfaces turn slippery, the integrated OC System® retractable ice grips provide extra bite on icy pavements, frosty paths and compacted snow. Flip the cleats out when they are needed, then fold them away again for ordinary surfaces or when moving indoors.
Leah's adjustable front lacing gives a personalised fit, while the gusseted YKK® side-entry zip makes this taller boot much easier to put on and take off. It is a stylish, practical choice for winter walking, dog walks, commuting, travel, ski holidays and après-ski.
FEATURES
- FREE UK SHIPPING (automatically applied at checkout)
- Women's full-length winter boot: contemporary Italian styling with a built-in OC anti-slip system.
- Traction: OC System® retractable ice grips switch between added grip for icy outdoor conditions and a folded-away position for normal surfaces.
- Colour: Black.
- Height: Full length.
- Permeability: Waterproof.
- Insulation: HeatMX™ cold rating to -30°C.
- Upper: PU nubuck and quilted nylon.
- Lining: Berber fleece.
- Insole: Removable felt.
- Sole: Contoured rubber sole.
- Closure: Adjustable front laces plus a gusseted YKK® side-entry zip for easier on and off.
- Trim: Grey-tipped faux fur.
- Sizes: EU 36–42.
FITTING
Based on our internal testing Leah offers a standard true to size fit.
CARE, REPROOFING & LONGEVITY
A waterproof membrane provides lasting protection, but the outer material's water-repellent finish benefits from regular cleaning and reproofing. The Grangers Footwear Care Kit helps remove dirt, restore water repellency and keep your Leah boots performing for longer.
The OC System is designed to be serviceable too. ICEGRIPPER supplies replacement OC System cleats, activation keys and spare parts, helping extend the useful life of your boots. If you are unsure which fitting you need, contact us and we will help identify it.
ADDITIONAL INFO
ICEGRIPPER are specialists in OC winter boots. We offer to price match any other UK website, including Amazon and eBay, on a like-for-like basis. If you find this boot for less, chat, email or call us.
Replacement cleats, activation keys and other OC System® parts are available from ICEGRIPPER. SHOP OC SPARE PARTS.
Clean and reproof your boots to maintain their weather protection and appearance. SHOP THE GRANGERS CARE KIT.
Waterproof Footwear explained – read our waterproof footwear guide.
FREE UK SHIPPING is automatically applied at checkout. Anything else ordered at the same time will also ship free.
UK POSTAGE OPTIONS
All our UK postage/shipping options are ‘flat fee’. Whether you order one or several products, you only pay a single postage charge. The more you order, the better the value! All delivery options will be presented at checkout. See our Delivery Details page for full service descriptions.
£3.99 Cost Effective...Untracked
May or may not require signature...Can collect from postal operators depot if attempted delivery made whilst you are out...Delivered 3-4 working days following dispatch.
£4.99 Most Popular...Tracked
Enhanced service level...May or may not require signature...May have a re-delivery option if attempted delivery made whilst you are out...Can collect from postal operators depot...Delivered 2 working days following dispatch.
£9.99 Fast...Next Day Delivery
Order must be placed before 12 noon, if not delivery the day after…Signature always required…Tracked…May have a re-delivery option if attempted delivery made whilst you are out (conditions apply)
£0.00...£100 FREE
Free shipping when you spend £100+...Automatically applied...Tracked Delivery
£0.00...Click & Collect FREE
Just click and collect! FREE pick up is now available from ICEGRIPPER's office in London. This is ideal if you live or work in London, or require something at short notice and can get to us. Orders can be collected by appointment within 12 hours of ordering. Simply select the 'Pick up' tab (as opposed to Ship) at Checkout and it's automatically applied...
£0.00...Local Delivery FREE
Got an E11 postcode? Us too! So we'll deliver to you FREE OF CHARGE! We use the trusty old Office Bike to zip around the neighbourhood. We'll make ONE DELIVERY attempt within 24 hours. If you're not in we'll leave a note, so you can then collect from our office (in E11) see Click & Collect.
WORLDWIDE POSTAGE
ICEGRIPPER ships worldwide. Rates vary by destination and are calculated at checkout before payment. See our Delivery Details page for more information
DISCLAIMER
Footwear shown in ice grip images (ICEGRIPPER BOOTS excepted) are not part of the offer and shown for fitting illustration of the ice grips.
Unless otherwise specified ice grips are not for indoor use.
ICEGRIPPER products are an aid in the prevention of slips and falls, not a guarantee. Always exercise caution on ice, snow and other slick surfaces.
RETURNS
Returns - Links to full policies
• 14-day cancellation right (UK customers)
• 14-day withdrawal right (EU customers)
• Try indoors first to check fit
• Outdoor use may affect refund eligibility
• See these terms in each of the above policies