100% copper or copper plated aluminum?

I looked at the wire strands where they are crimped to the copper jaws. Cannot see any aluminum in the strands. I cannot say for sure they are pure copper though. I can say the cables appear high quality. The case as well. Cost is lower than any advertised as 100% copper. Your decision to make.

Are these rubber and will the remain flexible during the northeast winters?

Yes the insulated cables are nice. They should last winter weather conditions. I live in Chicago area, winters can be bad but the i did order another jumper cable case because once I took cables out of the current case it was very difficult to put cables back in case.

There are conflicting answers to whether the wires are 100% copper or plated aluminum. Can anyone confirm? Packaging shows a picture of copper wires.

I would say copper. Hope this helps

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GOODYEAR - [4 GAUGE, 16 FT] - TRANSFERS HIGHER VOLTAGE THAN 6, 8, 10 or 12 GAUGE] Heavy Duty Jumper Cables with PVC CASE, Emergency Roadside Assistance, Works in EVERY WEATHER

Product ID: 283764541

⚡4 gauge wire for max power transfer

📏16 ft extra-long reach for versatile use

🛡️PVC case & insulation for weather resistance

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Description

⚡ Jumpstart your confidence—never get stranded again!

POWER UP FAST - 4 gauge heavy-duty cables deliver superior current flow for rapid jump-starts.
TANGLE FREE READY - Includes a rugged carrying case and cable ties for organized, hassle-free storage.
REACH WITHOUT LIMITS - 16-foot length lets you connect vehicles easily without awkward repositioning.
BUILT FOR ALL WEATHER - Durable PVC insulation stays flexible and reliable in extreme heat or cold.
UNIVERSAL COMPATIBILITY - Works seamlessly with cars, trucks, SUVs—your all-in-one roadside hero.

Goodyear’s 4 gauge, 16-foot heavy-duty jumper cables provide superior energy transfer for quick, reliable jump-starts in any weather. Designed with premium PVC insulation and a durable carrying case, these cables fit all vehicle types and ensure you’re prepared for roadside emergencies with ease and style.

Specifications

ASIN	B07MWL3YR2
Best Sellers Rank	#35,051 in Automotive ( See Top 100 in Automotive ) #58 in Automotive Replacement Battery Jumper Cables
Brand	Goodyear
Customer Reviews	4.7 4.7 out of 5 stars (1,634)
Date First Available	6 February 2019
Exterior	Painted
Item Weight	2.12 Kilograms
Item model number	GY1069
Manufacturer	Goodyear
Manufacturer Part Number	GY1069
Model	GY1069
Package Dimensions	26.9 x 26.01 x 8.41 cm; 2.12 kg
Special Features	4 Guage, PVC hard Case

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€ 147.18

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In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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TrustScore 4.5 | 7,300+ reviews

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