← All gear comparisons

Scarpa Alien Ultra LE vs Topo Athletic MTN Racer 4

Weight and specs compared for 2026 — and which one to choose.

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

Swipe to see all details.

Spec Scarpa Alien Ultra LE Topo Athletic MTN Racer 4
Weight 590 g · 0.590 kg · 1.30 lb
as listed — one shoe or a pair, not yet confirmed
 590 g · 0.590 kg · 1.30 lb
per pair (2 × 295 g), men's US 9; page does not say per shoe or per pair, so doubled from per shoe
Brand Scarpa Topo Athletic
Category Footwear Footwear
Scarpa Alien Ultra LE
590 g as listed

Carbon-plated trail running shoe with Pebax propulsion plate and integrated gaiter, designed for long alpine distances with Vibram Megagrip outsole and Flow Arc...

See it in your base weight → Full details →
Topo Athletic MTN Racer 4
590 g

Lightweight trail-running shoe with zero-drop platform, aggressive tread pattern, and cushioning. Per shoe weight for men's size 9; approximately 590g per pair.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Scarpa Alien Ultra LE vs Topo Athletic MTN Racer 4: which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

See where both rank against everything else in this category on the lightest footwear page, or browse the full gear weight database.

More footwear comparisons

Scarpa Alien Ultra LE vs Scarpa Ribelle Run Scarpa Alien Ultra LE vs Scarpa Ribelle Run 2 Scarpa Alien Ultra LE vs Scarpa Rapid XT Scarpa Alien Ultra LE vs Scarpa Ribelle Cross 2 GTX Mid Scarpa Alien Ultra LE vs Scarpa Rush 2 Pro Mid GTX Scarpa Alien Ultra LE vs Scarpa Rebel 10 HD