what size boots are the large for in mm? thanks john

Hello! For the Large size it will be for boots 305-345mm, and you can see the full size chart for the Cat Tracks at the bottom of this page: https://www.seirus.com/sizing

Can these be worn on a cast boot?

Hello! We have not tested these with a CAST boot system, but since essentially the only difference is that it's taller they should go on. There are little tabs which usually fit over the lip of the binding attachment which may no longer reach though.

photo say small but description say large which is true? How to pick size?

I had boot mondo size 28.5, and chose the large Cat Tracks Boot Sole Protectors. This is a measure of the bottom of the boot, which according to my tape measure, the distance from heel to toe is 12.75 inches, or 12 3/4", with the Cat Tracks just fitting the boot. For larger boot sizes, extra large is recommended.

Seirus Innovation 4150 Cat Tracks Boot Sole Protectors For Added

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Description

❄️ Step up your ski game with grip and comfort that lasts!

ALL DAY TRACTION BOOST - Confidently walk on ice, snow, and gravel without slipping
DURABILITY THAT PAYS OFF - Prolongs your expensive ski boots’ lifespan, saving you money and hassle
POCKET SIZED PRACTICALITY - Compact design fits easily in your jacket pocket for instant use
CUSHIONED COMFORT ON THE GO - Adds a soft walking layer to protect feet and boots alike
UNIVERSAL FIT UNIVERSAL APPROVAL - Compatible with all major ski boot and binding brands

Seirus Innovation 4150 Cat Tracks are slip-on sole protectors designed to extend the life of your ski boots by preventing wear and gravel damage. Recommended by all major boot and binding manufacturers, they enhance traction on icy and snowy surfaces while adding cushioned walking comfort. Compact and portable, these protectors are perfect for winter sports enthusiasts seeking durability and safety in every step.

Specifications

ASIN	B0018BGGOY
ASIN	B0018BCCHO
Best Sellers Rank	#248,542 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #80 in Shoe Ice & Snow Grips
Brand Name	Seirus
Color	Black
Coverage	snow/ice
Customer Reviews	4.3 4.3 out of 5 stars (307)
Date First Available	November 26, 2006
Department	unisex-child
Global Trade Identification Number	00090897585247
Included Components	item
Item Weight	4 ounces
Item model number	4150.0
Manufacturer	SETV9 - pallet ordering
Manufacturer	Seirus
Manufacturer Part Number	4150-001-Large
Material Type	Rubber, plastic
Model Number	4150
Number of Items	1
Package Dimensions	1 x 1 x 1 inches; 1 pounds
Size	Large
Sport Type	Skiing
Style Name	Cat Tracks
UPC	090897585247
Warranty Description	Limited Warranty

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