Thank you for viewing! This is a set of two M-size long-sleeved compression wear items with excellent functionality. They can be widely used as sports innerwear, as well as underwear for work or private use. 【Key Features】 • Excellent elasticity and strong compression effect Made with stretch material that fits the body. The firm compression suppresses muscle vibration, supporting improved exercise performance and fatigue reduction. • Sweat-wicking & Breathable Uses a material that quickly absorbs and disperses sweat, keeping you comfortable even during exercise and reducing stickiness. Also effective in preventing sweat chills and unpleasant odors. • UV protection & All-season対応 UV protection rate of 90% to guard against ultraviolet rays. This model can be used throughout the year, from summer sweat対策 to winter cold protection innerwear. 【Size Selection Notes】 This product has a very tight compression (pressure) design. The manufacturer's recommended weight for size M is 60-70kg, but even those of standard build may find it quite tight. If you are not comfortable with strong compression or prefer a looser fit, we recommend considering a size 1-2 sizes larger than your usual size, or purchasing for a smaller person (equivalent to size S). 【Product Specifications】 • Size: M • Set Contents: Long-sleeved 2-piece set • Material: 95% polyester, 5% polyurethane • Functions: Sweat-wicking, elasticity, UV protection, strong compression • Care: Machine washable 【Product Condition】 Brand new, unused