G-Star 3301 Slim Jeans review: fit, fabric and sizing
A source-based review of G-Star’s 3301 Slim Jeans, marked “Bestseller this week” on its official product page, with fit, fabric, size and coupon details.
Updated

Why this G-Star style is featured
G-Star’s official US product page marks style 51001-b964-a810 “Bestseller this week” above the 3301 Slim Jeans listing. That seller-applied weekly bestseller label is the evidence for featuring this model. The page does not publish its unit sales, the size of the comparison group, or a numbered position, so this review does not claim it is G-Star’s single best-selling product or independently audited number one. The article is a source-based guide to the listing; we have not worn or hands-on tested the jeans.
Cut and everyday design
The seller describes the 3301 as a slim-fit, mid-waist jean with a close line from the waist toward the hem and stretch denim. Its five-pocket layout, button fly, concealed button closure and back logo label follow a classic jeans format. G-Star calls the design a wardrobe staple; that is the brand’s description rather than an independent durability finding. The US page names the color “Black” and gives the color detail as “pitch black.” Its photos and description can help confirm the shade and trim before ordering.
Fabric and material notes
For this specific product page, G-Star lists 92% cotton, 7% Elastomultiester (T400 EcoMade) and 1% elastane, in 3-by-1 right-hand twill denim weighing 10.2 ounces. The product page’s preferred-materials section says 66% of the garment is regenerative cotton and describes T400 as made with 50% recycled PET and 18% renewable plant-based material. These are the seller’s material disclosures; this review does not independently audit the supply chain or make a wider environmental claim. The fabric includes stretch, but the amount of give and recovery has not been tested here.
Sizing and fit reference
The page lists waist sizes from 24 through 44 and inseam lengths from 30 through 38 in the displayed US size selector. Its model reference is 6 ft 3 in wearing 32/32, with a 31-inch waist and 39-inch hips. G-Star describes the cut as slim and mid-waisted, so compare the size guide with jeans that already fit you, especially if you prefer more room at the thigh or seat. Available combinations can change; check the chosen waist and length on the live page before checkout. The fit notes are the retailer’s specifications, not a personal fit report.
Price, delivery and care
The checked US listing showed $180.00 and a 30-day return period. It also displayed a $200 free-shipping threshold on the page header; the final delivery charge and return eligibility can depend on destination and order details. Treat the price as a dated page snapshot, and confirm the selected variant, taxes, shipping and current returns terms before buying. G-Star’s care panel says to wash at a normal 65–85°F setting, avoid bleach and tumble drying, and line dry in the shade; it also advises a low-temperature iron and says not to dry-clean this item. Follow the sewn-in garment label if it differs.
Who may want to consider it and coupons
The 3301 Slim may suit someone looking for black stretch denim with a mid-rise, slim shape and classic five-pocket construction. Its close cut is the main fit consideration for shoppers who prefer roomier jeans, while the seller’s weekly bestseller badge confirms only its own current designation, not a disclosed sales total. The single image above is generic AI concept art and does not show the exact garment. Find current G-Star coupons and offers on CouponAtlas at https://couponatlas.space/en/stores/g-star.com, then check each offer’s dates, product exclusions and shipping requirements before applying it at checkout.
Product information
Official product page. Editorial note