UMP-45 | Crimson Foil: trade up odds, float & price

Restricted SMGs skin from the Sport & Field Collection. Float range 0.00 – 0.68, available in Factory New, Minimal Wear, Field-Tested, Well-Worn, Battle-Scarred. You can get it from a trade up of 10 Mil-Spec skins of the Sport & Field Collection with a 33.3% chance per contract.

UMP-45 | Crimson Foil price by wear

Wear	Float	Price	StatTrak™
Factory New (FN)	0.000 – 0.070	$4.53	—
Minimal Wear (MW)	0.070 – 0.150	$2.62	—
Field-Tested (FT)	0.150 – 0.380	$2.40	—
Well-Worn (WW)	0.380 – 0.450	$2.28	—
Battle-Scarred (BS)	0.450 – 0.680	$2.14	—

Price check, 2026-11-11: the cheapest UMP-45 | Crimson Foil is Battle-Scarred at $1.75 on CS.MONEY. Factory New costs $3.12, 1.8× as much. On the Steam Market the Field-Tested sells for $2.40, 33% above the cheapest marketplace listing.

How to trade up into the UMP-45 | Crimson Foil

Put 10 Mil-Spec skins from the Sport & Field Collection into a trade up contract. The collection has 3 Restricted skins, so with all 10 inputs from this collection the Crimson Foil has a 33.3% chance (the other outcomes are Five-SeveN | Heat Treated, MP9 | Arctic Tri-Tone). Mixing in another collection lowers the chance in proportion to the inputs you replace.

Inputs (Mil-Spec): Nova | Yorkshire, P250 | Small Game, SSG 08 | Zeno, USP-S | Alpine Camo.
Factory New result: average normalised input float ≤ 0.1029.
Minimal Wear result: average normalised input float ≤ 0.2206.
Output float: 0.00 + average × 0.68 – see the float guide.

Cheapest UMP-45 | Crimson Foil trade ups right now

10 identical Mil-Spec inputs from the Sport & Field Collection at today’s prices. Every contract below has a 33.3% chance of this skin – open one to change floats, wear or fee.

Contract	Cost	EV	ROI	Chance of profit
10× P250 \| Small Game FN Mil-Spec → Restricted	$9.50	$11.02	+16.0%	33.3%	Open in calculator
10× P250 \| Small Game FT Mil-Spec → Restricted	$3.20	$3.23	+1.0%	33.3%	Open in calculator
10× Nova \| Yorkshire BS Mil-Spec → Restricted	$3.00	$2.94	-2.1%	33.3%	Open in calculator
10× Nova \| Yorkshire WW Mil-Spec → Restricted	$3.20	$3.08	-3.8%	0.0%	Open in calculator
10× P250 \| Small Game MW Mil-Spec → Restricted	$4.70	$3.72	-20.9%	0.0%	Open in calculator

Steam Market prices, snapshot of 2026-09-27 (USD, before fees); the table refreshes with live prices on page load. Knives and gloves above Steam's $2,000 listing cap use the lowest marketplace price.

Build a contract for the UMP-45 | Crimson Foil
Open in the calculator (auto-builds the cheapest contract)