Picture this: You need a new pair of jeans. Not for a special occasion — just for Tuesday. You walk into Old Navy, grab a pair of $34.99 Rockstar skinnies. Across the parking lot, Target has Universal Thread straight-leg jeans for $29.99. Both look decent on the rack. But six months from now, which pair will still look good? That’s the question.
I spent two weeks wearing and stress-testing seven pairs of jeans from both stores — four from Old Navy (Rockstar, Wow, Sky-Hi, and Built-In Flex) and three from Target (Universal Thread, Wild Fable, and A New Day). Here’s what I found.
Fit and Sizing Consistency: Where Both Chains Slip Up
Old Navy and Target both have a sizing problem — just different versions of it.
Old Navy: Vanity sizing on steroids
I wear a size 6 in Levi’s. In Old Navy, I took a size 2. That’s four sizes off. The waistband on the Rockstar 2 was identical to a size 6 from Universal Thread. If you order online without trying on, expect returns. The Sky-Hi jean (mid-rise, $39.99) runs a full size larger than the Wow jean (high-rise, $39.99) in the same labeled size.
Target: Inconsistency between lines
Target’s three main denim lines — Universal Thread (classic fits, $25–$30), Wild Fable (trendy cuts, $22–$28), and A New Day (office-friendly, $28–$35) — don’t share sizing standards. I tried a size 6 in all three. Universal Thread fit true-to-size. Wild Fable was tight in the thigh but loose in the waist. A New Day ran a half-size small overall.
Verdict: Both stores require in-store try-ons for first-time buyers. Old Navy is worse for vanity sizing. Target is worse for cross-line inconsistency.
Durability Testing: Which Jeans Survive 10 Washes?
I washed each pair ten times (cold water, tumble dry low) and tracked three failure points: seam integrity, color fade, and fabric thinning.
| Jeans (Price) | Seam Failure After 10 Washes | Color Loss (1–10 scale, 10 = like new) | Fabric Thinning |
|---|---|---|---|
| Old Navy Rockstar ($34.99) | Inner thigh seam fraying at wash 7 | 6 | Noticeable sheerness at knee by wash 8 |
| Old Navy Wow ($39.99) | No seam failure | 7 | Minimal |
| Old Navy Sky-Hi ($39.99) | Back pocket stitching loose at wash 5 | 5 | Moderate thinning at seat |
| Old Navy Built-In Flex ($44.99) | No seam failure | 8 | None |
| Target Universal Thread ($29.99) | No seam failure | 7 | Slight at inner thigh |
| Target Wild Fable ($24.99) | Hem unraveling at wash 6 | 4 | Heavy thinning at knees |
| Target A New Day ($32.99) | No seam failure | 6 | Moderate at seat |
Verdict: Old Navy’s Built-In Flex and Target’s Universal Thread are the most durable options. The Wild Fable jean is the least durable of all seven — avoid if you need more than a season out of your jeans.
Price vs. Cost Per Wear: The Real Math
Let’s be honest — $25 jeans seem like a steal. But if they last 30 wears before the knees blow out, that’s $0.83 per wear. A $45 pair that lasts 150 wears costs $0.30 per wear. The cheap pair is actually more expensive.
Here’s how the numbers shake out for a typical 18-month usage period:
- Old Navy Rockstar ($34.99): Estimated 60 wears before visible wear. Cost per wear: $0.58
- Old Navy Built-In Flex ($44.99): Estimated 150+ wears. Cost per wear: $0.30
- Target Universal Thread ($29.99): Estimated 100 wears. Cost per wear: $0.30
- Target Wild Fable ($24.99): Estimated 40 wears. Cost per wear: $0.62
Verdict: Universal Thread and Built-In Flex are tied for best long-term value. Wild Fable and Rockstar are false economies — you’ll replace them sooner.
Style and Trend Coverage: Who Catches the 2026 Wave?
Both stores follow the same trend cycle — wide-leg, barrel jeans, and relaxed straight cuts dominate 2026. But they execute differently.
Old Navy offers more washes and rises. The Wow jean comes in 14 washes, from light acid to black. The Sky-Hi has a 12-inch rise — genuinely high-waisted, not just mid-rise pretending. If you need a specific wash color, Old Navy probably has it.
Target’s Universal Thread line focuses on five core washes per fit, but they refresh seasonally. The A New Day line adds trouser-cut denim and paperbag-waist styles that Old Navy doesn’t carry. For office-appropriate denim, Target wins.
Verdict: Old Navy for wash variety. Target for trend-forward silhouettes like the denim trouser.
Fit for Different Body Types: Where Each Store Excels
This is where the two stores diverge most sharply.
Old Navy: Best for tall and plus sizes
Old Navy carries jeans in tall (34-inch inseam) and petite (28-inch) for every style. Their plus-size line (up to size 28) uses the same fits as straight sizes — not scaled-up versions of a different pattern. The Built-In Flex jean in plus sizes has a reinforced waistband that prevents gapping. That matters.
Target: Better for athletic thighs
Target’s Universal Thread curvy fit (available in sizes 0–18) has a 2-inch larger hip-to-waist ratio than the standard fit. If you have a 27-inch waist and 39-inch hips, the curvy fit eliminates the waist gap. Old Navy doesn’t offer a curvy-specific fit — their standard fit has a 10-inch difference, which works for straight body types but gaps on hourglass figures.
Verdict: Tall and plus-size shoppers should go Old Navy. Curvy and athletic builds should go Target.
Common Buyer Mistakes (And How to Avoid Them)
Three mistakes I see people make with budget denim — and how to avoid each one.
Mistake 1: Buying stretch denim for structure. Old Navy’s Rockstar has 2% spandex. After three hours, the knees bag out. If you want jeans that hold their shape all day, pick the Built-In Flex (98% cotton, 2% elastane — tighter weave) or Universal Thread (99% cotton, 1% spandex). Less stretch = less bagging.
Mistake 2: Assuming darker washes hide wear. They don’t. Dark wash jeans show fading faster than medium washes because the contrast between the dye and the white core thread is higher. A medium indigo wash hides wear marks best. Both stores have medium washes — look for “stonewash” or “vintage” labels.
Mistake 3: Skipping the care label. Old Navy’s Sky-Hi says “machine wash cold, tumble dry low.” Target’s Wild Fable says “hand wash, lay flat to dry.” If you treat them the same, the Wild Fable will shrink and warp. Read the label before you buy — if you won’t follow the care instructions, don’t buy the jeans.
Compressed Verdict: Who Wins for 2026?
For most people, Target’s Universal Thread is the better buy. It costs less ($29.99 vs. $34.99–$44.99), lasts longer (100+ wears), and fits more body types with the curvy option. The fit is consistent, the washes are versatile, and the cost per wear matches Old Navy’s premium line.
Buy Old Navy’s Built-In Flex if you’re tall, plus-size, or need a specific wash color they don’t carry. Buy Target’s A New Day trouser-cut denim if you need office-appropriate jeans. Avoid Wild Fable for anything you want to wear past three months. And always, always try on first.
Denim at this price point is a tradeoff — you get affordability but not heirloom quality. The trick is knowing which tradeoffs are worth making. For 2026, Universal Thread makes the right compromises. Old Navy’s Built-In Flex makes a different set. Choose based on your body, not the price tag.
