Skip to content

Your browser's Javascript functionality is turned off. Please turn it on so that you can experience the full capabilities of this site.

Women's Siren 4 Thermo Mid Zip Waterproof

£180.00

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 1

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 2

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 3

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 4

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 5

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 6

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 7

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 8

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 9

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 1

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 2

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 3

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 4

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 5

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 6

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 7

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 8

Siren 4 Thermo Mid Zip Waterproof, Hazel, dynamic 9

Women's Siren 4 Thermo Mid Zip Waterproof

£180.00

{"attributes":["size","width"],"inventory":[{"id":"195021266853","quantity":0,"status":"NOT_AVAILABLE"},{"id":"195021266860","quantity":0,"status":"NOT_AVAILABLE"},{"id":"195021266877","quantity":2,"status":"IN_STOCK"},{"id":"195021266884","quantity":14,"status":"IN_STOCK"},{"id":"195021266891","quantity":5,"status":"IN_STOCK"},{"id":"195021266907","quantity":30,"status":"IN_STOCK"},{"id":"195021266914","quantity":11,"status":"IN_STOCK"},{"id":"195021266921","quantity":44,"status":"IN_STOCK"},{"id":"195021266938","quantity":12,"status":"IN_STOCK"},{"id":"195021266945","quantity":29,"status":"IN_STOCK"},{"id":"195021266952","quantity":4,"status":"IN_STOCK"},{"id":"195021266969","quantity":13,"status":"IN_STOCK"},{"id":"195021266976","quantity":1,"status":"IN_STOCK"}],"variations":{"195021266853":{"isAvailable":false,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"5","sizeDisplayValue":"2.5","width":"M","widthDisplayValue":"M"},"195021266860":{"isAvailable":false,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"5.5","sizeDisplayValue":"3","width":"M","widthDisplayValue":"M"},"195021266877":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"6","sizeDisplayValue":"3.5","width":"M","widthDisplayValue":"M"},"195021266884":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"6.5","sizeDisplayValue":"4","width":"M","widthDisplayValue":"M"},"195021266891":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"7","sizeDisplayValue":"4.5","width":"M","widthDisplayValue":"M"},"195021266907":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"7.5","sizeDisplayValue":"5","width":"M","widthDisplayValue":"M"},"195021266914":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"8","sizeDisplayValue":"5.5","width":"M","widthDisplayValue":"M"},"195021266921":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"8.5","sizeDisplayValue":"6","width":"M","widthDisplayValue":"M"},"195021266938":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"9","sizeDisplayValue":"6.5","width":"M","widthDisplayValue":"M"},"195021266945":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"9.5","sizeDisplayValue":"7","width":"M","widthDisplayValue":"M"},"195021266952":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"10","sizeDisplayValue":"7.5","width":"M","widthDisplayValue":"M"},"195021266969":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"10.5","sizeDisplayValue":"8","width":"M","widthDisplayValue":"M"},"195021266976":{"isAvailable":true,"isComingsoon":false,"discontinuedflag":false,"color":"J038764","size":"11","sizeDisplayValue":"8.5","width":"M","widthDisplayValue":"M"}},"color":{"attributeID":"color","displayName":"Colour","ID":"color","values":[{"ID":"J038764","displayValue":"Hazel","value":"J038764","description":null}]},"size":{"attributeID":"size","displayName":"Size","ID":"size","values":[{"ID":"5","displayValue":"2.5","value":"5","description":null},{"ID":"5.5","displayValue":"3","value":"5.5","description":null},{"ID":"6","displayValue":"3.5","value":"6","description":null},{"ID":"6.5","displayValue":"4","value":"6.5","description":null},{"ID":"7","displayValue":"4.5","value":"7","description":null},{"ID":"7.5","displayValue":"5","value":"7.5","description":null},{"ID":"8","displayValue":"5.5","value":"8","description":null},{"ID":"8.5","displayValue":"6","value":"8.5","description":null},{"ID":"9","displayValue":"6.5","value":"9","description":null},{"ID":"9.5","displayValue":"7","value":"9.5","description":null},{"ID":"10","displayValue":"7.5","value":"10","description":null},{"ID":"10.5","displayValue":"8","value":"10.5","description":null},{"ID":"11","displayValue":"8.5","value":"11","description":null}]},"width":{"attributeID":"width","displayName":"Width","ID":"width","values":[{"ID":"M","displayValue":"M","value":"M","description":"Medium"}]}}

Size

Size Chart

Size Guide

Women's Footwear Size Chart
UK Women's Size	EU	US	JPN (cm)
2.5	35	5	22
3	35.5	5.5	22.5
3.5	36	6	23
4	37	6.5	23.5
4.5	37.5	7	24
5	38	7.5	24.5
5.5	38.5	8	25
6	39	8.5	25.5
6.5	40	9	26
7	40.5	9.5	26.5
7.5	41	10	27
8	42	10.5	27.5
8.5	42.5	11	28
9	43	11.5	28.5

Use your PayPal Account

Please select Size and Width

Made For: Winter hikes

Built for women who refuse to wait for perfect weather. These waterproof hiking boots are engineered with a female-focused fit and Vibram® Icetrek traction that conquers the coldest terrain. Premium leather construction meets cozy knit details—because technical performance doesn't mean sacrificing style.

Best for: Winter Hike
Insulation:
200 grams Primaloft® Gold Eco Series synthetic insulation. Solarcore® Aerogel insole provides underfoot superior warmth while being extremely flexible and ultra-thin.
Waterproofing: Waterproof full grain leather upper, complete with a waterproof membrane seals out water and lets moisture escape.
Traction: Vibram® Icetrek outsole designed to provide the improved grip on very cold, icy, or snowy surfaces. Vibram traction lugs specifically designed to increase traction and shed debris with each step

Comfort Features:
• Heavy-duty, Waterproof, YKK zipper for easy on and off
• Bellows tongue keeps out debris
• Protective and abrasion resistant rubber toe cap
• Cleansport NXT™ treated for natural odor control
• FloatPro™ Foam midsole for lightweight comfort that lasts

Materials:
• Waterproof full grain leather and knit upper
• 100% recycled laces and webbing
• 100% recycled fleece lining
• 100% recycled mesh footbed cover
• 5% recycled PU removable footbed

Additional Measurements:
• Stack Height: 28.5-20.5mm
• Drop: 8mm
• Lug: 5mm
• Shaft height (top of midsole to top of boot): 5.91in, 150mm
• Half pair weight: 1lbs-3.04oz, 540g

See all reviews