Wickron T Kid's M Mark 50th 130 160 Montbell America Wickron Long Sleeve T Women's Monta Bear 50th Montbell America Wickron Long Sleeve T M Mark 50th Montbell America Montbell Outsiders Store Outsiders Store UK. The 50th Anniversary Wickron Classic M Mark Long Sleeve T Shirt from Montbell is a technical t shirt adorned with some eye catching graphic prints, made to commentate Motnebells half centenary. Crafted from the proprietary Wickron fabric, a 100% polyester fibre, this fabrication is soft like cotton, but more proficient at wicking moisture, alongside boasting fast drying credentials. Wickron 100% polyester Graphic print on chest and back Ribbed cuffs US EU sizing Regular fit, choose your usual size